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Butterfly refers to the closure of parts for the disk, rotating around the valve axis to achieve a kind of open and close the valve, the main effect on the pipeline and to reduce expenditure by cutting off.
蝶阀是指关闭件为圆盘,围绕阀轴旋转来达到开启与关闭的一种阀,在管道上主要起切断和节流用。
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Again, I maintain that we should use the flexural-tensile strain and the vertical shearing stress of the bottom of cover of the joint as the target for the design of the cover structure of asphalt on the old cement concrete. In addition, on the basis of much theoretical analysis, I preliminarily put forward to a designing methods to anchor the old cement concrete road by using dog irons made of iron bars and then covering it using asphalt concrete structure. Finally, through selecting the plan of the cover of the road to be experimented, and making a detailed introduction to the techniques of construction according to the result of theoretical analysis, I know that after anchoring the slabs close to each other with dog irons made of iron, and then cover them using asphalt cement concrete has an obvious effect on preventing and slowing down the reflection cracks in the bituminous concrete skin coat over the old road.
在大量分析的基础上提出了马钉锚固罩面结构中相邻两块水泥混凝土板接缝处的相对水平位移、相对垂直位移、接缝处沥青层底部的弯拉应变和剪应变的计算公式;再次,提出了采用接缝处罩面层底部的弯拉应变、垂直剪应变作为旧水泥混凝土路面上沥青混凝土罩面结构的设计指标,并在大量理论分析的基础上,初步提出了马钉锚固旧水泥混凝土板后沥青混凝土罩面结构的设计方法;最后,根据理论分析的结果,选定试验路的罩面方案,并对其施工工艺进行了详细的介绍,表明采用钢筋马钉锚固相邻混凝土板后,再进行沥青混凝土罩面的方法在防止或减缓罩面层反射裂缝方面具有明显的效果。
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If it's a single deck bus, I find a corner at the back ;if it is double-decked, I would get on the upper level and choose a seat on the front row by the window , testing my head on the glass, and sometimes the luxuriant green of tree seem so close that I feel I'm sitting right under them.
如果是单层的,那就在最后一排找一个角落,如果是双层的,一定在坐在上层前排靠窗的位置:把头枕在玻璃上,郁郁葱葱的植物有时感觉就挂在头顶。
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Study on disease resistance assessment of corn ear rot by F.moniliforme showed that the method of injection spore suspension into corn ear was the best inoculation method.This method is to be close to the natural condition, and the disease occures very sufficiently.The best inoculation time is milk stage.In this period, the disease occures very sufficiently and the data are statisticed very easily.The best inoculation concentration of spore suspension was 1×10~6 spores/mL,and the inoculation volume was 3mL/ear.
通过对串珠镰刀菌性穗腐病抗病性鉴定,结果表明:玉米穗腐病的接种方法以向苞叶内注射病菌孢子悬液的效果为好,这种接种方法接近自然,发病又比较充分;接种时期以乳熟期接种为最好,在这个时期接种,发病充分,易于数据统计分析;接种浓度以1×10~6个孢子/mL的孢子悬液为好;接种量为3mL孢子悬液/果穗。
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The relationships between crusts and substrate rocks have been probed from the following four aspects:(1) the characteristics of major metallic elements content in seawater, substrate rocks and crusts;(2) the different close relations between different bedrocks and crusts by cluster analysis;(3) the distribution characteristics of crusts;(4) the influence of rock types on the growth of crusts.
从以下四个方面探讨结壳与基岩之间的关系:(1)海水、基岩和结壳中主要金属元素含量特点;(2)通过聚类分析方法探讨结壳与基岩之间的亲疏程度;(3)结壳的分布特征;(4)不同基岩类型对结壳生长的影响。
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The introductive robot arm of this text can output two lines pulses by the PLC, driving the horizontal stalk, and the perpendicular stalk to drive the electrical engineering actuator respectively, to control the robot arm precision of the horizontal stalk and perpendicular stalk at the fixed position, tiny move switch input the position signal to the PLC.The direct current motor drags along to begin the claw and bedrocks to revolve, the position signal from revolve the code dish and near to the switch feedback to host of PLC;The electromagnetism valve control the machine hand open and close, thus carry out the function of the machine hand precision work.
本文介绍的机械手是由PLC输出两路脉冲,分别驱动横轴、竖轴步进电机驱动器,控制机械手横轴和竖轴的精确定位,微动开关将位置信号传给PLC主机;直流电机拖动手爪和底盘旋转,位置信号由旋转码盘和接近开关反馈给PLC主机;电磁阀控制气开阀的开关来控制机械手手爪的张合,从而实现机械手精确运动的功能。
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After stop boiler and drain out all the water, clean up with the inside of dirt, dry up with fire, open the access hole to discharge steam, then put about 6 kg 10-30mm calces or CaCL in basin and put it into the furnace, close the vessel, check by 3 month, if the drier loses effects, it must replace with new.
锅炉停炉后放完炉水,将内部污垢清洗干净,用小火烘干,烘干时打开人孔门排出水汽,然后将直径10-30mm的块状生石灰或无水氯化钙(CaCL2)装于搪瓷盆内,大约放6Kg左右,然后将锅筒关严,以后每三个月检查一次,若干燥剂已经失效,应予以更换。
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The results show that the ultimate stability bearing load by nonlinear analysis is close to the test load, they only have 10% deviation. For steel bridge towers, the correlation of the panels in the section of rectangle with chamfers is more obvious than that in the section of rectangle. If the four angles of the rectangle section were cut off, a panel with the smaller ratio of width to thickness forms, which can supply effective constraint to other weak panels with the larger ratio of width to thickness.
结果表明:第2类稳定计算得到的失稳极限荷载与实测荷载较为接近,两者相差10%;带切角矩形截面钢桥塔较矩形截面钢桥塔板件间的相关作用更加明显,对矩形截面钢桥塔进行切角,形成宽厚比较小的壁板,可以对宽厚比较大的弱板提供有效约束。
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The results show that space finite analysis results are close to test ones, bottom chords suffer axial force and large in-plane bending, and the max stress is nearby each middle internode. The max stress of node crossbeams occurs in No.2 bottom flange, and that of internode crossbeams happens in ones lying in the middle of every internode. The concrete slab is in tension at the longitudinal direction, and also suffers bent at vertical loads. The degree of completely-composite model taking part in the combined actions is about 55%, while that of semi-composite model is 42%-43%. The combination of concrete slab and bottom chord increases the degree of floor system taking part in the combined actions, lightens the burden of bottom chord, and reduces out-of-plane bending of node crossbeams especially the ones near bridgehead. Stress and displacement of main truss can be evaluated by a equivalent plane rigid frame in preliminary design, and effective stiffness of bottom chords are composed of original ones and concrete slab, and the concentrated load from deck can be translated into uniform load.
研究结果表明:空间有限元分析结果与试验结果较吻合;下弦杆受到轴向拉力和较大的面内弯矩作用,各节间最大应力出现在节间中点附近;节点横梁最大应力发生在横梁2的下翼缘,节间横梁最大应力发生在位于端节间中部的小横梁上;混凝土板顺桥向整体受拉,并在竖向集中荷载作用下产生弯曲变形;全结合模型大部分节间内的桥面板参与主桁共同作用的程度为55%左右,半结合模型桥面板的参与程度为42%~43%;桥面板与下弦杆结合能够增加桥面板的参与程度,减轻下弦杆荷载,减少节点横梁尤其是靠近桥头横梁的面外弯曲;对桥梁进行初步设计时,主桁杆件的位移与内力可按照1个等效的平面刚架计算,下弦杆的等效刚度由原下弦杆截面和混凝土桥面板截面组合而成,桥面荷载可转化为均布荷载施加。
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Company Profile Our company is located in known health city - Zhangjiagang City, South along the river have high-speed connectivity Huning high-speed, 204 East State Road, bounded by the Yangtze River, has the natural Ice-free port - Zhangjiagang Port, the West close to the Beijing-Shanghai high-speed, transport is accessible, convenient water and land away from the international metropolis - Shanghai, only two hours of journey, is the largest along the southern artificial fur production enterprises, a wholly-owned domestic advanced computer-controlled jacquard machine, all computer-controlled artificial fur machine plain and complete finishing equipment - shearing, setting machine, hot cystathionine machine and so on, strong technical force, advanced technology, can produce different color simulation fur (plush, Shanghai is expected, downpipes hair, Boa, Ping, lamb, embossed velvet, plush color Maojian Stubbs, Maojian dyeing plush and fur products such as composites) and the variety of patterns, the high-grade jacquard plush (Shanghai jacquard, jacquard lamb, embossed).
我公司地处闻名全国的卫生城市—张家港市,南有沿江高速连接沪宁高速,东有204国道,北临长江,有天然的不冻港口—张家港港,西紧靠京沪高速,交通可谓四通八达,水陆方便,距国际大都市—上海仅二个小时的路程,是江南一带最具规模的人造毛皮生产企业,拥有国内先进的全电脑控制提花机,全电脑控制素色人造毛皮机,完整的后整理设备—剪毛、定型机、烫胱机等等,技术力量雄厚,工艺先进,可生产色泽各异的仿真毛皮(长毛绒、海派料、落水毛、割圈绒、平剪绒、羊羔绒、压花绒、毛尖拔色毛绒、毛尖染色毛绒及复合毛皮等产品)和花样繁多的中、高档提花毛绒(提花海派、提花羊羔绒、压花绒等)。
- 推荐网络例句
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We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.
索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称;三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起,称之为挽歌体诗人或者史诗诗人,他们被称为诗人,似乎只是因为遵守格律写作,而非他们作品的模仿本质。
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The relationship between communicative competence and grammar teaching should be that of the ends and the means.
交际能力和语法的关系应该是目标与途径的关系。
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This is not paper type of business,it's people business,with such huge money involved.
这不是纸上谈兵式的交易,这是人与人的业务,而且涉及金额巨大。