曲柄行程
先理解核心含义，再看它在真实句子里的用法。
曲柄行程
the distance traveled by a crank in a reciprocating motion
The engine's crank stroke determines its displacement.
发动机的曲柄行程决定了其排量。
曲柄行程
the distance traveled by a crank in a reciprocating motion
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Dictionary facts from AI_SUPPLEMENT.