查询词典 valve

Different types of valves (including ball valve, butterfly valve, cut-off valve and brake valve) commonly used in designing painting line and their features were introduced.

介绍了涂装线设计中常用的各种类型的阀门(包括球阀、蝶阀、截止阀、闸阀)及其特点。

Our company produce all kinds of high, medium and pressure series valve, valve, check valve, valve plate, high pressure oil wellhead equipment, slurry pipe sinks, cutting Meeting Series snubbing pipe, casing head and drilling accessories such as petroleum, chemical industry equipment.

公司主要生产经营各类高、中、压系列闸阀、截止阀、止回阀、平板阀门、高压采油井口装置，泥浆管汇、节流压井管汇系列、套管头及钻采配件等石油、化工行业专用设备。

Sheng Cheng Qing County valve manufacturing company, located in the beautiful 30 km northeast of Cangzhou Lion City, covers an area of 6,000 square meters, the company mainly produces various types of center line butterfly valve, different carbon steel (416,304, 316) of various parts: shaft, valve shaft, valve plate, flange and so on.

青县晟程阀门制造公司，位于美丽的狮城沧州东北方向30公里，占地面积有6000平方米，本公司主要生产各种型号中线蝶阀阀门，不同碳钢材质（416、304、316）的各种配件：转轴、阀轴、阀板、法兰等。

He was stunned when he opened my heart, since the structure of my mitral valve was so particular that they may had never seen it, there was no chordae tendineae on the back lobe of mitral valve, my mitral valve shaped like a cloak, medically called " cone mitral valve", I thought they may basically had seen it on textbook.

他将我的心脏一打开就傻眼了，因为我二尖瓣的结构估计他们从来都没见过，我的二尖瓣后瓣叶没有腱索，成漏斗形，医学上称为&斗形二尖瓣&，他们基本上是在教科书上见过。

In order to decrease the loss energy, a new kind of sleeve valve of hydraulic impactor is designed. It takes the technical measure of cone valve and optimum unequal polite of valve. The sleeve valve has features of little leakage, little pressure loss and low energy cost.

为了降低能源消耗，研制了一种新型的液压冲击器配油阀，该阀采用锥阀阀口形式和优化的不等阀开口量技术，使配油阀泄漏量小，阀口压力损失小，换向运动能耗低，液压冲击器效率高。

Through the analysis of different cross section flow field in cylinder of two-valve and four-valve diesel engine, the following conclusion can be obtained: The formation of intake swirl of two-valve diesel engine mainly is effected by an intense air flow ring zone near the radius from valve axis to cylinder axis, as the flow progresses down through the cylinder, the ring zone air flow expends to both side and finally forms an unified rigid rotating swirl motion.

2号缸盖的螺旋进气道产生的绕自身气门轴线的动量矩比1号缸盖的大，且切向气道的径向速度在前峰面上的数值比1号缸盖的速度数值大很多，因此，两进气道组合后的动量矩损失也大，所以虽然2号缸盖的两个进气道单独的涡流比都高于1号缸盖的两个进气道，但组合后的合成涡流比却是基本相同的。

In order to study the intake air flow characteristics in four-valve diesel engines, in this dissertation hot-wire anemometer and PIV twodimension instantaneous measuring technique are used. Extensive experimental study on two intake valve exit flow fields and longitudinal section flow field in cylinder are performed for different type of diesel engines. Great researching progress have been made on the interaction between two intake ports, and the formation process of in-cylinder swirl and flow field structure of cross and longitudinal section for four valve diesel engines. These results are presented in China for the first time and without such kind of research work reported abroad as detailed and deepgoing as this dissertation. The author designs and makes a set of hot wire measuring velocity device to measure the velocity distribution around the intake valve annulus and the cross section flow field in cylinder.

为了研究四气门柴油机进气过程中气体流动的变化规律，本文利用热线测速和PIV二维瞬态测速技术，对四气门柴油机两进气门出口全圆周流速场和缸内横、纵剖面的气体流动流场进行了大量的试验研究，在四气门柴油机两进气道之间相互影响的变化规律，缸内涡流的形成过程及缸内横、纵剖面流场结构等方面取得了重大的研究进展，这一研究工作在国内尚属首次，在国外也未见有如此全面、深入的研究报道。

The valve body and valve cup of mud pump are parts that are easily to be worn and broken. In order to increase the life-time of these parts, we studied the technology of increasing the life-time of valve body and valve cup by ionic welding.

泥浆泵的凡尔体和凡尔座是泥浆泵上的易损件，为了提高凡尔体和凡尔座的使用寿命，我们试验研究了用等离子喷焊耐磨合金来提高凡尔体和凡尔座性能的工艺。

The machining of valve guider and valve set is one of the key process in production of engine cylinder-head.Arming at the precision finishing of valve guider and valve set,a special compound deep-hole cutting tool was designed and made out.

发动机气门导管孔和气门座圈的加工是发动机缸盖加工的关键工艺之一，针对气门导管孔与气门座圈的精密加工，设计制造了专用的复合深孔加工刀具，介绍了该刀具的结构与加工原理，并在试验的基础上优选了加工刀片材料，设计了加工刀片的结构参数。

Especially for the fluid containing sand, cutting may damage the sealing surface 5, soft sealing gate valve of the operating temperature limits by the valve seal material good throttle control when needed (such as control valves or bypass pipe had a small vent), the cut-off valve is the most appropriate valve.

尤其对于含有砂的流体，节流会损坏密封表面 5、软密封闸阀的操作温度受密封材料的限制截止阀当需要好的节流控制（如控制阀的旁通管路或有小的排气孔）时，截止阀是最合适的球阀。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷