Carrier后来把活塞动力改为离心式制冷机，可以冷却更大空间。
Carrier later switched from piston power to the centrifugal chiller, which allowed much larger Spaces to be cooled.
发动机零件尤其是活塞，必须保持光泽以确保性能和正确的冷却。
Engine parts, particularly the piston, must be kept free of varnish to ensure performance and proper cooling.
由于柴油机热负荷不断提高，必须要对活塞进行有效冷却。
Piston needs to be cooled efficiently with increase of thermal loading of diesel engines.
为保证往复活塞式压缩机的运行可靠性和经济性，必须通过冷却系统对其进行良好的冷却。
Reciprocation compressor must be well cooled by cooling system in order to ensure its reliability and economy in the course of running.
介绍盐芯铝活塞概要和一种新型水溶性盐芯成形内冷却油腔的方法。
Salt core Al alloy piston and the new way of shaping cooling channel with water soluble salt core are introduced.
提出了活塞铸造中模具均衡冷却的新方法，讨论了均衡冷却对活塞质量的影响，指出合理加强冷却是获取高质量活塞的关键。
A new method of balanced cooling permanent mould was described. The effect of balanced cooling on the piston quality is discussed. The key to improve quality is to reinforce the cooling.
针对某增压柴油机振荡冷却油腔活塞的非对称结构，建立全活塞活塞销连杆小头的有限元模型；提出了振荡冷却油腔的第三类热边界条件的数学描述并进行了验证；
The FEM for the assembly parts of piston, gudgeon pin and small-end of connecting rod is constructed to investigate a diesel engine piston with an oscillating-oil-cooling channel.
针对某增压柴油机振荡冷却油腔活塞的非对称结构，建立全活塞活塞销连杆小头的有限元模型；提出了振荡冷却油腔的第三类热边界条件的数学描述并进行了验证；
The FEM for the assembly parts of piston, gudgeon pin and small-end of connecting rod is constructed to investigate a diesel engine piston with an oscillating-oil-cooling channel.
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