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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。
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The amount of blade twist is called the pitch angle .
叶片扭曲的量被称之螺旋上升角。
youdao
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The amount of blade twist is called the pitch angle .
叶片扭曲的量被称之螺旋上升角。
youdao