查询词典 heat wave
- 与 heat wave 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
The Coaxial helical-groove slow-wave structure, an all-metal slow-wave circuit, has advantages of good heat dissipation and great size.
同轴螺旋槽慢波系统具有全金属结构,有大尺寸、散热性能好的特点。
-
At the same time, combining with the actual condition of delivery pipeline of our country and some prevalent leak detection and location methods, this paper raised a method, which is based on wavelet analysis and negative- pressure-wave to detect and locate the leakage. Jobs in the paper are as follows:As affected by gas density, pressure, specific heat and pipe material, the velocity of negative-pressure-wave improved depending on the energy conservation. At one time, taking the affection of velocity of gas flow, the location formula was modified in some degree.When locating the leaks with location formula, the iterative approach algorithm was adopted as a new method to increase the location accuracy level of system.Multi-scale decomposition and reconstruction of wavelet transform is utilized to filter the noise of negative-pressure-wave, which was brought by leakage. With the capacity to detect the signal singularity fast and accurately, wavelet transform was used to catch the break point of pressure signal. The work improved the accuracy of At in location formula, accordingly improved the location accuracy.Wavelet is a suitable tool for signal analysis. The distinct character is that the mother-wavelet is of optional. That means choosing different mother-wavelet will get different analysis result. So we studied how to choose mother-wavelet and its scale for signal singularity detection. The method is to choose a wavelet by regularities of the wavelet and the signal.Finally, a plan, which bases on SCADA system for inspection and detection of natural gas leakage, is proposed in the article.
其中,主要进行了以下几方面的工作:针对泄漏产生的负压波在管道中的传播速度受媒介的密度、压力、比热及材质等因素的影响,而非声波在空气中传播的速度,本文利用能量守恒原理,对其进行了修正;考虑到管内气体流速对压力波速的影响,对原始的负压波定位公式进行了一定程度的改进,并在利用定位公式进行泄漏点定位时采用逐步迭代逼近算法,提高了系统的定位精度;利用小波变换的多分辨率分解和重构技术,对采集到的管道发生泄漏时产生的负压波信号进行了降噪处理;并利用小波变换技术对信号奇异点的快速、准确的识别能力,对经上述消噪后的负压波信号进行了奇异点捕捉,精确捕捉的结果提高了定位公式中上下游站点采集到的负压波奇异点的时间差△t的精度,从而进一步提高了定位的精度;考虑到小波变换是一种基波可变的信号分析工具,也就是说,不同的小波基波对信号分析的结果将有很大差别,这势必影响最终的处理结果,因此,我们又对比分析了本课题中小波基及尺度的选择问题,依据规则性系数相似性原理对母小波的选择进行了探索性研究;最后,还提出了基于SCADA的泄漏检测与定位系统的软件开发构想及系统的嵌入方案。
-
If the laser is in ultraviolet-visible wave, photons activate choicely electron energy level or destroy weak bond of compound molecule, and result in chemistry reaction, which is photo leading decomposition mechanism, if the laser is in infrared wave, the chemistry reaction mainly is heat decomposition mechanism.
如果激光是可见紫外波段,光量子能量有利于选择性地激发分子的电子能级,或破坏化合物中弱键而诱导化学反应发生,化合物属于光致分解机理、引发弱键断裂机理;如果激光是红外波段,化合物表现的则是热分解机理。
-
The transverse wave disturbance along tangential base flow of circular vortex is discussed By using numerical method we study this instability of baroclinic flow which is mesoscale inertia wave instability on the cylindrical coordinate The influence of stratification stability N 2 , Coriolis parameter f 0 , the vertical shear of tangential wind z of the ambinent atmosphere and the latent heat on the growth rate of instability is studied From the above analysis and calculation, we can learn that there are Eady mode and mesoscale mode of transverse wave instability in circular vortex as well Furthermore we also learn that distribution character of mesoscale mode disturbance field of transverse wave instability, anomalistic "cats eye" structure of lower level and the character of the slowly spreading disturbance converges at low level and the quickly spreading disturbance converges at high level
作者中文名:李红金;陆汉城;宋晓亮;李鲲摘要:讨论涡旋大气中,存在沿切向基流传播的横波型扰动,并采用数值方法讨论了柱坐标系下圆形涡旋系统斜压气流中这类扰动的不稳定,这是一类中尺度的重力惯性波的不稳定。研究了涡旋环境大气的层结稳定度参数N2、切向风垂直切变Vz、凝结潜热、涡旋特性及科里奥利参数f0对不稳定增长率的影响。圆形涡旋中同样存在横波不稳定的Eady模态和中尺度模态,得到了中尺度模态的扰动场分布特征:流场的不规则"猫眼"结构及慢速传播的扰动均集中在低层,而快速传播的扰动均集中在高层的扰动特征。
-
Many natural phenomena and physical laws can be described by time dependent nonlinear differential equations, such as heat conduction equation, sound wave and elastic wave equation, reaction diffusion and convection diffusion equation, fluid and aerodynamics equations, etc.
大多数的自然现象与物理规律都可归结为与时间相关的非线性偏微分方程,诸如热传导方程、声波与弹性波方程、反应扩散与对流扩散方程、流体与气体力学方程组等发展方程。
-
Computer carving molds categories: high frequency mode, bronzing die, metal plastic mould, metal stamping letters die, metal crafts sculpture, greeting cards embossed die, plastic gift-chapter, line version of a wave soldering lead-free governance with a furnace, such as three-dimensional relief Three-dimensional sculpture of computer processing… stickers printed categories: all kinds of stickers printed labels, stickers, bar code standard, easy shredding, arrow superscript, subscript cloth clothing shoes and hats, water standard, such as India Mark… Rubber Tag Categories: Crystal Dijiao, micro-injection, drops Chapter plastic raw materials, etc… silicone series categories: Japan KE-1310ST, KE-1310S, JX-860, JX-850 and its color paste, auxiliary agents and special tools… PVC raw materials Series: highly transparent material, PVC powder paste, DINP oil, light and heat stabilizers, hardware oil, PVC heat-ink color paste… Series: low-temperature heat-ink (round, rectangular, smooth, dumb noodles) and color color paste , Etc… flocking Series: Flocking paper, flocking oar, flocking Transfer, etc… machines Series: automatic multi-color flocking machine, planting colorful three-dimensional plastic machine, silicone package molding machines, high-frequency embossing machine, rubber Plastic signs pipeline equipment…---- since we have since opened in accordance with the philosophy, in order to meet customer needs and quality to achieve customer satisfaction.
电脑雕刻模具类:高周波模、烫金模、五金塑料模、五金冲压字母模、金属工艺品雕刻、贺卡压花模、礼品胶章模、线路版过波峰焊无铅过炉治具、立体浮雕等各种三维电脑雕刻加工…不干胶印刷类:印刷各种不干胶标签、贴纸、条码标、易碎纸、箭头标、服装鞋帽布标、水标、印唛等…橡塑标牌类:水晶滴胶,微量射出,滴塑胶章等…矽利康原料系列类:日本KE-1310ST、KE-1310S、JX-860、JX-850及其色浆、辅助剂和专用工具等…PVC原料系列:高度透明料、PVC糊脂粉、DINP油、光热稳定剂、硬油、PVC色浆…热固油墨系列:低温热固油墨(圆角、直角、光面、哑面)和彩色色浆等…植绒系列:植绒纸、植绒桨、植绒转印纸等…机器系列:自动多色植绒机、立体多彩植胶机、矽利康整套成型机、高频压花机、橡塑标牌流水线设备等
-
Answer: Shoots the frequency wave is the wave band is the 40.67MHZ electromagnetic wave, causes through the different technique to shoot the frequency wave penetration surface layer base first floor the melanophore, depth of penetration 2mm-20mm, resonates the principle through a minute small water-kettle to cause the organization to heat up to the threshold value temperature 65 ℃-75 ℃, both affects to the collagen organization, and may affect to the fat, achieved dispels wrinkles the skin, dissolves the effect which the fat loses weight, does not have any damage to the epidermis.
答:射频波是波段为40.67MHZ的电磁波,通过不同的手法使射频波穿透表层基底层的黑色素细胞,穿透深度2mm-20mm,通过分水子共振原理使组织加热至阈值温度65℃-75℃,既作用于真皮层胶原组织,又可作用于脂肪,达到祛皱紧肤、溶脂减肥的功效,对表皮无任何损伤。
-
Our plant develops usualness inter-access technology communication with more than ten international famous electric furnace manufacturing companys,and repeated visits to the foreign advanced electric furnace factories and institutes every year, learning and absorbing foreign advanced industrial furnace manufacturing technology and production processes, technology, special components of electric furnace improving technology, product upgrading technology, it makes our plant keep synchronization with the international advanced industrial furnace manufacturing technology no whether in the type,the updating of furnace, fundation material progress, components manufacturing technology progess , manufacturing automation, and the way the loading of the loading basket manufacturing technology, WDS lining energy saving techniques, ceramic fiber wave of high pressure tied ceiling stack technology, oxidation-free protection atmosphere, carburizing, nitriding, molten, salt bath, nitrate Austempered, precision heat treatment process, equational flow and temperature heat transfer asymmetric quenching tank manufacturing technology, microcomputer program heat treatment technology curve temperature control process , and so on can keep pace with internationa advanced industrial electric furance manfacturing technology.
我厂与国际十多家著名电炉制造公司开展经常性互访技术交流,每年多次前往国外先进电炉制造厂和研究所,学习并吸收国外先进的工业电炉制造技术和生产过程,工艺技术,电炉专用零部件改进技术,产品更新换代技术,使我厂工业电炉产品无论在品种类型,炉种更新,基础材料进步,零部件制造技术进步,制造工艺自动化,装料方式和装料筐制造技术方式,WDS炉衬节能技术,陶瓷纤维波浪叠法高压捆扎吊顶技术,无氧化保护气氛,渗碳,氮化,盐浴,硝盐等温淬火,精密热处理工艺,均流均温换热不对称淬火油槽制造技术,微电脑程序热处理工艺曲线控温等各个方面,能够与国际上先进工业电炉制造技术保持同步。
-
Cold wave lotion 冷气烫发- all of our perm wave lotion are cold wave formule, no artificial heat needed.
冷气烫发-所有曲发液均为冷气烫发液,无需任何加热器具。
-
Is a professional production of large-scale explosion-proof heaters, high temperature heat pipetemperature Electrical, mechanical and electrical cellular heat pipe dehumidification drying, central air-conditioning fan coil heater, heating tube electric reflow wave soldering wire,, shoe-making mechanical and electrical heat pipe, mold heating pipes, electric cigarette tube equipment, pharmaceutical machinery electric pipe, electroplating equipment, heating tube, heater Teflon, titanium heating tube, far infrared heating tube, quartz heating tube, ceramic tube heater, titanium system without Pb furnace, electric lap Limited, and Deputy States imports and compensation of thermocouple wire.
深圳市新宏大电热科技有限公司是一家专业生产大型防爆加热器、高温型模温机电热管、蜂巢式除湿干燥机电热管、中央空调风机盘管加热器、波峰焊回流焊电热管电热丝、、制鞋机电热管、模具加热管、卷烟设备电热管,制药机械电热管、电镀设备加热管、铁弗龙加热器、钛加热管、远红外电热管、石英电热管、陶瓷电热管、钛制无铅锡炉、电热圈的有限公司,并代理各国进口热电偶及补偿导线。
- 推荐网络例句
-
Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.
在对危险的南部地区访问时,他斥责什叶派民兵领导人对中央集权的挑衅行为。
-
In fact,I've got him on the satellite mobile right now.
实际上 我们已接通卫星可视电话了
-
The enrich the peopling of Deng Xiaoping of century great person thought, it is the main component in system of theory of Deng Xiaoping economy, it is a when our country economy builds basic task important facet.
世纪伟人邓小平的富民思想,是邓小平经济理论体系中的重要组成部分,是我国经济建设根本任务的一个重要方面。