Engine parts, particularly the piston, must be kept free of varnish to ensure performance and proper cooling.
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。
Our company is a professional salt core (for inner cooling gallery of aluminum piston) producer in China with abundant funds and technical advantages in the production of salt cores.
我公司是中国国内专业（铝活塞内冷油道）盐芯生产商，在盐芯的生产上拥有雄厚的资金和技术优势。
Salt core Al alloy piston and the new way of shaping cooling channel with water soluble salt core are introduced.
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。
Based on the 175F type swirlprechamber air cooling diesel engine, through redesigning cylinder head and piston etc. , new 175F type direct injection air cooling diesel engine is formed.
在175F涡流预燃室风冷柴油机的基础上更换气缸盖、活塞等零件，改成新的175F直喷式燃烧室风冷柴油机。
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.
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。
This machine is of LV model, double-row, double-step, double function, water-cooling, and intercrossing, fixed, no basic reciprocating piston type air compressor.
本机为L型、两列、两级、双作用、水冷、有十字头的固定式往复活塞空气压缩机。
This machine VF-6/7 is of V model, double-row, double-step, wind cooling, fixed reciprocating piston type air compressor.
本机型为V型、两列、两级、风冷的固定式往复活塞空气压缩机。
This machine V-3/7 is of V model, double-row, double-step, water cooling, fixed reciprocating piston type air compressor.
本机型为V型、两列、两级、水冷的固定式往复活塞空气压缩机。
This machine V-6/7 is of V model, double-row, double-step, water cooling, fixed reciprocating piston type air compressor.
本机型为V型两列、两级、水冷的固定式往复活塞空气压缩机。
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.
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；
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