查询词典 air time
- 与 air time 相关的网络例句 [注:此内容来源于网络,仅供参考]
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So in this paper based on the characteristics and the optimum state theory of the vehicle, some kinds of control schemes are compared and discussed, and the fuzzy PID control scheme is adopted at last. The relation between air-cushion pressure and fan rotational speed on the optimum driving state is studied. The cushion pressure is used as controlled variable and the fan revolution is used as regulated variable. And transducer and fan motor are actuators.Based on the structure and operating properties of half-tracked air-cushion vehicle, the control system scheme and structure are presented. A control scheme using the self-tuning PID fuzzy logical controller is adopted. Fuzzy rules are set up and some researches have been done for fuzzy tuning method. At the same time the real-time measurement scheme by computer control is proposed, and electric circuits are designed. In the control system of half-tracked air-cushion vehicle cushion pressure P〓 is used as controlled variable and the fan speed n〓 as regulated variable.
因此本文以半履带式气垫车的特性和最佳工作状态理论为指导,通过对各种控制方法的比较与探讨,提出采用模糊PID控制方案,并且研究了在最佳工作状态下垫压及风机转速的关系,提出气垫压力作为控制参数,变频器和风机电机为执行机构,风机转速为调节量;主要进行了自整定模糊PID控制器的设计,研究了自整定PID模糊控制器的实现方法,编制了模糊控制规则,制定了模糊控制参数查询表,并分析了影响自整定模糊控制器相关的影响因素,确定了模糊控制表;为了实现半履带式气垫车的自动控制,还提出了计算机模糊控制系统的原理与结构,设计了相应的测量电路与控制软件。
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The static model of torsion joint is based on that of bending joint. The effects of structure parameters inside air pressure, initial angle, rube average radius, rube shell thickness on the turning angle are analyzed and the following conclusions are drawn: the relationship between the angle of torsion joint and the inside air pressure is basically linear, the angle of torsion joint increases with the initial angle and rube average radius, the angle of torsion joint decreases while the rube shell thickness increases. The kinetic equation is built for torsion joint. Simulating experiment implies that the time of inflating and deflating process is extremely shorter than that of kinetic process. So the pneumatic process can be ignored in actual system design and control. The factors that affect the dynamic features of torsion joint, such as shell thickness of rubber tube, average radius, initial angle, connector's outlet area, moment of inertia and viscous damping coefficient, are analyzed and the following conclusions are drawn: the change of rube shell thickness has no effects on the dynamic process of FPA inside air pressure while greatly affects the turning angle of torsion joint; when the rube shell thickness is small, the torsion joint has a bigger turning angle, no overshoot and long risetime, when the shell thickness is big, the turning angle of torsion joint is small, but has high response speed, overshoot and low shock; when the rube average radius increases, the turning angle of torsion joint increases and the overshoot increases too; when the initial angle of torsion joint is big, the turning joint is big, the overshoot is small and shock is low, but the risetime is big; the connector's outlet area affects the dynamic process of FPA inside air pressure greatly, but has no effects on the dynamic process of turning angle; moment of inertia and viscous damping coefficient have no effects on the dynamic process of FPA inside air pressure, but affect the dynamic process of turning angle greatly.
在弯曲关节模型推导的基础上,建立扭转关节的静态模型,并分析了扭转关节内腔压力,初始转角,橡胶管平均半径,橡胶管壁厚等参数对关节转角的影响,得出扭转关节的转动角度与充入FPA内腔的压缩气体压力之间基本呈线性关系,扭转关节的转角随初始角度和橡胶管平均半径的增大而增大,扭转关节的转角随橡胶管壁厚的增大而减小的结论;建立了扭转关节的动力学方程,仿真实验表明FPA的充放气过程与扭转关节的动力学过程相比时间极短,在实际系统设计和控制过程中可以忽略不计;分析讨论橡胶管壁厚,平均半径,初始角度,气体节流口面积,转动惯量,粘性阻尼系数等因素对扭转关节动态特性的影响,得出橡胶管初始壁厚的变化对扭转关节FPA内腔压力的动态响应几乎没有影响而对关节转角的响应曲线影响比较明显,壁厚较小时,关节可以得到较大的转角,并且转角的响应曲线没有超调,但上升时间长,壁厚较大时,关节转角变小,响应加快,但是有超调和轻微振荡现象,橡胶管平均半径越大,得到的关节转角越大,但是转角响应的超调量也随之增大,FPA的初始角度越大,关节的转角越大,并且超调量减小,振荡减弱,但是上升时间增大,管接头出口面积的大小对关节FPA内腔压力的建立过程影响较大,但对关节转角的动态响应几乎没有影响,转动惯量和粘性阻尼系数对FPA内腔压力的动态过程几乎没有影响而对扭转关节转角有较大影响等结论。
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The electronic heating evaporator in the high-side gravity recirculation system in ANSI/ASHRAE 64-2500 standard is replaced by a new type plate evaporator which is more effcient and energy-saving, because the cold water outlet from the evaporator that is used to heat the cryogen can be used once again to cool the air in the air inlet trunk; an air processing unit is designed in the lab design, so to imitate all kinds of weather in each season in every location of China at any time the test is being made; the data selection system can send all the data in the test to the computer at one time, and to reduce the cost of the test some data which is more stable are read manually through traditional meters if this can not sacrifice the precision of the test.
本文的设计中用效率更高的新型板式换热器代替了原ANSFASHRAE 64——2500标准中压缩驱动循环系统中的电加热蒸发器,加热冷剂后得到的低温淡水还可以用于冷却进气通道中的空气,不仅提高了效率,而且更加节能;实验室方案中增加了空气处理系统,可以实现随时对全国各地各季节的空气状态进行模拟,方便实验的进行;采用数据采集系统将数据整体采集到电脑中方便数据处理,而且对于变化频率不高相对较为稳定的数据采取传统仪表进行人工读数,在保证测试结果准确性的前提下降低了成本。
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The results indicate that, during the early storage period under short time treatment with heat air, the activities of amylase and polygalactouronase are effectively decreased; starch content reduction is inhibited; the degradation speed of pectin and the decrease speed of flesh hardness are slowed down, and the release rate of ethylene in fruit is decreased. During the later storage period, the decomposition rate of middle lamella and primary wall of the Li jujube fruit treated with heat air for a short time is delayed, exosmosis of cell contents is inhibited, and the cell structure is protected, so the storage time of Li jujube fruit is prolonged.
结果表明,梨枣采后贮前短时间热处理能有效地降低早期淀粉酶和多聚半乳糖醛酸酶活性,抑制淀粉水解,延缓果胶降解,降低乙烯释放量,延缓果肉硬度下降速度,后期能延缓果肉细胞中胶层和初生壁分解,阻止细胞内含物外渗,保护细胞的结构,从而延长了贮藏保鲜期。
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Characteristic: 1st, when water flowing not the pressure damages; 2nd, non-contact induction signal sample; 3rd, guards against the dripping of a water clock, the size current capacity does not have the error; 4th, the installment does not divide the direction; 5th, table when assembly the disposable tack-dry, prevented cheats; 6th, can generate electricity the outer loop work to use electricity voluntarily, lengthens the battery period of revolution; 7th, the battery can replace voluntarily, the magcard box and the battery box are equipped with the self-locking security function; 8th, has the magnetization to guard against the boiler scale function; 9th, this table lifelong does not use the dial gauge; When 10th, this table uses in the natural gas and the liquid gas, whether there is can in the automatic detection room the air noxious gas, if has can start the exhaust fan automatically (exhaust fan switch with this table connection), and the automatic shut-off table valve, plays the safe role; When 11th, this table uses in the warm air, according to the temperature, the time, the area cost, the temperature could not achieve the stipulation cost, the user cannot act according to own current economic condition to open at will stops, and is equipped with the frostproof function, to does not need the warm air the heating equipment not to be able for a long time to ruin by freezing.
特点:1、水流动时无压损;2、非接触感应信号取样;3、防滴漏、大小流量没有误差;4、安装不分方向;5、表在装配时一次性粘固,防止作弊;6、能自行发电补充电路工作用电,延长电池使用时间;7、电池能自行更换,磁卡盒和电池盒设有自锁防盗功能;8、具有磁化防水垢功能;9、该表终身不用校表;10、该表用于天然气和液化气时,能自动检测室内空气有无有害气体,如有能自动启动排气扇,并自动关闭表阀,起到安全作用;11、该表用于暖气时,根据温度、时间、面积计费,温度达不到规定不计费,用户可根据自己的经济条件随意启停,并设有防冻功能,对长期不用暖气的采暖设备不会冻坏。
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B Loss of working hours due to air travel time, half the honoraria rate provided always that air travel time exceeds 3 hours one way, transfer time is not included.
因长途飞行导致的工作时间损失,以服务报酬的一半计算(只适用于单程飞行时间3小时或以上,不含转机时间)。
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ARIZONA in the United States, the United Kingdom Ge Teer air-conditioning Co., Ltd., established since 1939, from the date the "science and technology to improve the environment" business philosophy, although after the "era of ever-changing, growing competition," the historical environment, but Ge Teer Companies have been performing "to provide patience, high-quality, safe environment, efficient air-conditioning products and quality service" business ideas, at the same time continue to develop innovative, according to the needs of the times and customer needs, has been committed to the most advanced technology , A strong product development capabilities, the industry won a technology trend-setting status of its high-quality performance, a sound marketing network and improve the protection of the installation services, and entered the York, Daikin, such as air-conditioning industry go hand in hand with the well-known Chi Brand ranks, won the air-conditioning in the United States leading the field of the status of its own trust and good quality credit history, coupled with continuous innovation and the creation of a glorious one, has won global cooling in the field of good reputation. The air-conditioning in the Ge Teer Co.
位于美国ARIZONA州的英国戈特尔空调有限公司,自1939年创立之日起,以&科技改善环境&的经营理念,尽管历经&时代不断变化,竞争不断加剧&的历史环境,但戈特尔公司一直履行着&向顾客提供耐性、高品质、安全环保、高效率的空调产品和优质的服务&的经营思想,同时不断发展创新,根据时代需要和顾客需求,一直致力于以最先进的技术、强大的产品开发能力,在业内赢得了技术引领潮流的地位;以其高品质的性能,健全的营销网络,完善的安装服务保障,进入了与约克、大金等空调行业内齐头并进的驰著名品牌行列,赢得了在美国空调领域内领导者的地位;以其拥有值得信任和良好质量信誉的历史,加之不断创新和创造了一个又一个辉煌,赢得了在全球制冷领域内良好的声誉。
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At last the paper realized the advantages and disadvantages of passive solar building and adnvanced some suggestions in future research. From another point, the paper logged the process of the building of the experimental equipment and the mounting of the measurement equipments that accumulated some operating experimence.Carrying experiments, calculating and analyzing the experimental data for more than 2 years, the paper gained some constructive conclusions. In winter the indoor air temperature and RH are lower than comfort criteria, but people feels very comfortable in the passive solar house. The thermo-circulation formed by Trombe wall play an important role in improving indoor air temperature and RH. Based on the analogy analysis theory, the natural convection heat transfer in the air gap can be treated as superposition of two natural convection heat transfer processes occurring over isolated isothermal vertical flat plate, in this case namely the massive wall and glazing. Two empirical formulas for Q and Nu are obtained. The investigation shows that the optimal time to open the damper should comply with the period that the thermo-circulation happens which can be controlled by thermal response characteristics of Trombe wall surface temperature and air temperature in the air gap.
经过两年多的实测和计算,根据传热学、流体力学、统计学等学科的基础理论,对大量数据进行整理归类、分析讨论,主要得到如下结论:(1)冬季,含有特朗贝墙体的被动式太阳房室内热湿环境较舒适性标准偏低,但人体感觉比较舒适,特朗贝墙体形成的热循环通风在调节室内温度和相对湿度方面起到很大的作用;(2)特朗贝墙体空气间层自然对流可以看作是两个等温独立大平板的自然对流换热过程的叠加,通过与大平板自然对流理论类比获得了计算热循环过程中对流换热量的经验公式;(3)特朗贝墙体通风口的启闭可以根据玻璃幕墙内壁面温度、蓄热墙体外壁面温度和空气间层进出口空气温度之间的关系来进行控制,从而有效地阻挡冬季冷循环的发生;(4)夏季,如没有有效的通风降温措施,被动式太阳房内会产生明显的过热。
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Goodbye to you, my trusted friend We've known each other since we're nine or tenTogether we climbed hills or treesLearned of love and ABC'sSkinned our hearts and skinned our kneesGoodbye my friend, it's hard to die When all the birds are singing in the skyNow that the spring is in the air Pretty girls are everywhereWhen you see them I'll be thereWe had joy, we had fun We had seasons in the sun But the hills that we climbedWere just seasons out of time Goodbye, Papa, please pray for meI was the black sheep* of the familyYou tried to teach me right from wrongToo much wine and too much songWonder how I get along Goodbye, Papa, it's hard to die When all the birds are singing in the skyNow that the spring is in the air Little children everywhere When you see them I'll be there We had joy, we had fun We had seasons in the sun But the wine and the song Like the seasons all have gone Goodbye Michelle, my little one You gave me love and helped me find the sunAnd every time that I was down You would always come aroundAnd get my feet back on the groundGoodbye, Michelle, it's hard to die When all the bird are singing in the skyNow that the spring is in the air With the flowers everywhere I wish that we could both be thereWe had joy, we had fun We had seasons in the sunBut the stars we could reachWere just starfishes on the beach.
歌词中文翻译:再见了,我忠实的朋友咱们从九岁或十岁时就认识了我们一起爬山,一起爬树一起学习爱和ABC磨练心性也磨破了膝盖再见了,朋友,道别是如此难以启齿当鸟儿在空中歌唱此刻,春天的气息洋溢到处都是漂亮的女孩当你看见她们,我将随之出现我们曾拥有快乐,拥有欢笑我们曾拥有阳光季节我们爬过的小山坡不曾因时光而变换季节再见,老爸,请为我祈祷我曾是家里的坏小孩你曾试著教我分辨对错太多的美酒与歌怀疑我是怎麼过日子的再见了,老爸,道别是如此难以启齿当鸟儿在空中歌唱此刻,春天的气息洋溢孩童们四处奔跑当你看见他们,我将随之出现我们曾拥有快乐,拥有欢笑我们曾拥有阳光季节但美酒与歌像季节一样消逝无踪再见了,蜜雪儿,我的小情人你给了我爱,帮助我找到阳光每次我意志消沈你总是来到我身边帮助我重新振作起来再见了,蜜雪儿,道别是如此难以启齿当鸟儿在空中歌唱此刻,春天的气息洋溢花儿四处开放愿我俩能在一起我们曾拥有快乐,拥有欢笑
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Air is transfened into hot air by passing through the heater,and goesinto the hotair separator on the top of he dryer,then goes into the drying room evenly.at the same time liquid materials are sent to the centrifugal atomixer on the top of the dryer the the screw pump with stepless speed regulation,and atomized into timy dr-oplet which will contact hot air,then dried into dry product within shortest time.
空气通过加热器转化为热空气,进入装置在干燥室顶部的热风分配器,然后均匀的进入干燥室,同时通过无级调速的螺杆泵将料液送至装置在干燥室顶部的雾化器,使料液雾化成极小的雾化液滴,料液和热空气并流接触,水份迅速蒸发在极短的时间内干燥为成口若悬河,成品经干燥塔底部和旋风分离器排出,废气由风机抽出排空。
- 相关中文对照歌词
- Christmas Time Is In The Air Again
- 推荐网络例句
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The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
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This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.
这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。
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The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.
聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力