1) glass vacuum stopcock
玻璃真空活塞
2) stopcock
[英]['stɔpkɔk] [美]['stɑp'kɑk]
玻璃活塞
3) vacuum glass
真空玻璃
1.
Application of OMRON PLC and MCGS configuring software in control system of vacuum glass production line
基于欧姆龙PLC和监控组态软件的真空玻璃生产线电气控制系统的设计
2.
The mathematics model for heat flowing and transferring in vacuum glass was established by the principle of conductive and convective heat transfer,and the equations,such as vacuum glass conductive heat quantity by free molecule,solid transferring heat through the brace and the margin,exterior convection and heat transfer,were deduced.
利用传导和对流传热原理,建立了真空玻璃热量的流动和传递数学模型,推导了真空玻璃自由分子状态的导热量、支撑柱及边料的固体导热及真空玻璃的外表对流换热方程。
3.
Through the comparison between them,the result shows that energy-efficient effect of the vacuum glass windows is more obvious than the regular in the building.
简要介绍了真空玻璃产业的现状及展望。
4) vacuum glazing
真空玻璃
1.
A new type of building surrounding structures was put forward,which applies vacuum glazing to thermal insulating wall,thereby the insulation performance of the wall was improved greatly and the thickness of the wall was reduced obviously.
提出了一种新型的建筑围护结构,此结构将真空玻璃应用于保温墙体,使墙体的保温性能大大提高,墙体厚度明显减小。
5) glass-topped piston
玻璃顶活塞
补充资料：活塞式无油干式机械真空泵原理及简介
活塞式无油干式机械真空泵技术要求不太复杂，容易制造。
该泵的外形呈扁方形，是由四个阶梯形活塞及四个阶梯形气缸组成。与电机直联的轴通过四根连杆带动四个活塞。活塞的背面空间由次级活塞抽气，以减少泄漏和降低极限压力。每个气缸都有进气阀与排气阀。四个活塞组成三个压缩级，为了增加抽速，两个活塞是并联的，为了便于泵在大气压力下的启动，设置了辅助排气阀，当活塞的排气压力高于大气压力时，有一部分气体通过阀排入大气，当其排气压力低于大气压力时，则排出气体依次进入第三个、第四个气缸压缩后排出泵外。泵的压缩比可达到 105 ，泵的极限压力可达 1.3Pa 。泵气缸的内表面衬有聚合材料，以降低摩擦系数与磨损。这种泵的功率消耗低，散热条件较好，不需要冷却水。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条