The connecting rod, in essence, is a bar with a bearing at each end, whose purpose is to transmit the piston thrust to the crankshaft.
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Rod ratio is rod length to stroke.
A. 对
B. 错
Rods can fail for any number of reasons. Installation error is a common one.
A. 对
B. 错
Please match the terms in English with their corresponding Chinese meanings.
美的产生，大致经历了（ ）阶段。
A. “无所谓美丑”的阶段
B. “有丑无美”的阶段
C. “功利美”的阶段
D. “超功利美”的阶段
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