膨胀机为进气有阀、排气无阀的短活塞型。
The expansion engine which has a inlet valve without exhaust valve, is a short piston engine.
研究认为，柴油机气缸盖进、排气道脉纹的产生主要是由硅砂高温发生相变膨胀导致砂芯开裂引起的。
Research has believed that veining in admission and exhaust passage of diesel engine cylinder head may mainly be caused by crack of sand core occurring in high temperature phase change expansion.
在能量转移系统中，应该采用容积膨胀减压方式减少减压环节的可用能损失；合理利用低温排气的冷量火用可以提高气动发动机能量转移系统的总能量效率。
The expander can reduce exergy loss in pressure reducing process, and the utilization of cryogenic exergy of air-powered engine exhaust is useful to improve the total energy efficiency.
这样势必造成汽轮机下部凝汽器、排气短节、膨胀节吊装就位的难度增加。
It will certainly increase the difficulty degree to install condensers, exhaust put joints and expansion joints under the turbine.
该膨胀率还导致排气口附近区域形成富氧气氛。
This expansion ratio also allows atmospheres of oxygen-enriched air to form in the area surrounding a release.
泵不会过热：压缩空气作动力，在排气时是一个膨胀吸热的过程，气动泵工作时温度是降低的，无有害气体排出。
Pump will not overheat: powered by compressed air in the exhaust is an endothermic process of expansion, pneumatic pump when the temperature is lower, non-harmful gas emissions.
位于传输煤炭粉尘的风管的伸缩接头(膨胀节)的设计应当能够承受排气爆炸。
Expansion joints located in ducts conveying coal dust shall be designed to withstand a vented explosion.
膨胀式自动排气阀，不渗漏。
膨胀式自动排气阀，不渗漏。
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