正确答案: D
thermal expansio
题目:An aluminum piston has lower inertia and higher coefficient of () compared to that of cast iron.
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学习资料的答案和解析:
[单选题]二冲程直流扫气式柴油机吊缸时不检查()。
排气口
[单选题]Modern engines () exhaust gas driven turbo-chargers to supply pressurized fresh air for scavenging and supercharging.
make use of