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Thee L+L is an engine with 1 exhaust.
该升+升是一个引擎，一排气。
youdao
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The twist angle of L shape piston ring directly influences the performance of diesel engine.
形活塞环的扭角对柴油机的性能有着显著的影响。
youdao
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The twist angle of L shape piston ring directly influences the performance of diesel engine.
形活塞环的扭角对柴油机的性能有着显著的影响。
youdao