查询词典 valve

The 20th century advent GLOBE VALVE of the sleeve valve 60's, 70's heavy use at home and abroad, and 80 years the introduction of the sleeve valve petrochemical plant accounted for a larger proportion of that time, many people think that the sleeve valve can replace a single, double seat valve, to become the second-generation products.

20世纪60年代问世的套筒阀，70年代在国内外大量使用，80年代引进的石化装置中套筒阀占的比率较大，那时，不少人认为，套筒阀可以取代单、双座阀，成为第二代产品。

The median valve function is the valve inside the slide valve in the middle or the original position in the oil port valve connected forms, reflects the control of valve function.

换向阀的中位机能是指换向阀里的滑阀处在中间位置或原始位置时阀中各油口的连通形式，体现了换向阀的控制机能。

Analyze the characteristic and virtues of the electric balancing valve,Analyze the difference between the electric balancing valve and the electric valve,Introduce that the electric balancing valve is a integrative product with the functiongs of dynamical balancing and electrical regulating ,Introduce the application and virtues of the valve in Variableness flowrate system,Introduce the concept of All Balancing in Variableness flowrate system and characteristic of high-effiiciency and energy saving and how to come it true

摘 要：本文分析了动态平衡电动阀的特点及与传统的电动阀相比较的优点；揭示了动态平衡电动阀是区别于传统电动阀的产品，是动态平衡与电动控制一体化的产品；介绍了这种阀的应用及在系统负荷波动较大的变流量系统中的优势，同时提出了变流量水力系统全面平衡的概念、高效节能的特点及实现途径。

Twenty-six patients had subpulmonary VSD(diameter 0.8±0.8cm), 18 VSD lay immediately below pulmonary valve, 8 had muscle distant from pulmonary valve, 20 lay completely below pulmonary valve, and 6 lay below pulmonary valve and aortic valve.

3肺动脉瓣下型室间隔缺损26例（直径0.8±0.8cm），其中近邻肺动脉瓣18例，与肺动脉瓣有肌性相隔8例；单纯位于肺动脉瓣下20例，主动脉瓣和肺动脉瓣下6例。

The main products are: gate valve, globe valve, check valve, filter, ball valve, bellows globe valve Trigonella brand malleable economy HSG, HG, HSS, HS, HSC, HC, HSCS, HST, DB2 Trigonella card malleable standard D10G, D20G, D10S, BD10D, BD10

主要产品有：闸阀、截止阀、止回阀、过滤器、球阀、波纹管截止阀胡芦牌玛钢经济型HSG、HG、HSS、HS、HSC、HC、HSCS、HST、DB2胡芦牌玛钢标准型D10G、D20G、D10S、BD10D、BD10L、D10C、D10T。

First, full-tetrafluoroethane Yixi F4 corrosion-resistant face-off valve folder, Valve structure for the separated, the use of F4 will be lining circle Valve package lining, the lining between the ring and the valve used to do back high-elastic rubber lining, Lining laps and a spherical valve plate sealed disc for the whole package tetrafluoroethane sealed structure.

产品说明书一、全聚四氟乙稀F4耐腐蚀球面对夹蝶阀，阀体结构为分体式，其使用F4衬圈将阀体包衬，衬圈和阀体之间采用高弹橡胶做靠背衬，衬圈和阀板采用球面密封，阀板为全包四氟密封结构。

Main production: Sanitary Ware, Pipe industry, Pipe Fittings, Ball valve, check valve, floating ball valve, tap valve, flushing valve, Cars, all kinds of rubber accessories.

主要生产：洁具、管界、管件、闸阀球阀、止回阀、浮球阀、水嘴阀门、冲水阀、汽车摩托车各种橡胶配件。

Urban systems generally use a large number of low-pressure valves, and to the development of environment-friendly and energy-sing, that is used in the past low-voltage iron gate valve and gradually turn to environment-friendly plastic sheet valve, balance valve, metal sealed butterfly valve and the transition of the center line butterfly valve seal .

城建系统一般采用大量低压阀门，并且向环保型和节能型发展，即由过去使用的低压铁制闸阀逐步转向环保型的胶板阀、平衡阀、金属密封蝶阀及中线密封蝶阀过渡。

However, mechanical prosthetic valve has poor biocompatibility, and biological valve is easy to degrade and to be damaged. People have studied a new material to make valve. Giant molecule materials-made no-stent bio-mitral valve with chordae tendineae is similar to normal valve.

生物瓣具有血流动力学性能优秀，不需终生抗凝等优点，但机械瓣的生物相容性较差、生物瓣易退化损坏等问题，使人们开始对新的瓣膜制作材料进行研究，使用高分子材料制成的无支架带腱索生物二尖瓣与自然瓣膜相似，可维持人体二尖瓣生理功能、左室几何形状和血流动力学。

Also we may design the valve group for the distributor of the motor,like with balancing valve,high-pressured shuttle valve,velocity modulation cross valve or other performance valve groups.

摘要本设计是通过对液压绞车工作原理、工作的环境和工作的特点进行分析，并结合实际，在进行细致观察后，对液压绞车的整体结构进行了设计，对组成的各元件进行了选型、计算和校核。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。