名词
中文翻译：固体轴
同义词：
['solid rod', 'solid shaft']
例句：
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1. Themachine's solid shaft is made ofhigh-quality steel.
这台机器的实心轴是由优质钢材制成的。
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2. The engineerused a solid shaft to drive the drill.
工程师用一根实心轴来驱动钻机。
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3. The solid shaft was crucial for themachine's operation.
实心轴对于机器的运行至关重要。