名词中文翻译
中文翻译：内部花键
同义词：
['internal gear', 'internal spline shaft', 'internal spline gear']
例句：
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1. The internalspline shaft is used to connect the two pieces of machinery together.
内部花键轴用于将两台机器连接在一起。
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2.The internal spline gear is designed to reduce friction and improve efficiency.
内部花键齿轮设计用来减少摩擦并提高效率。
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3.The internal spline shaft is crucial for maintaining the smooth operation of the machine.
内部花键轴对于保持机器的平稳运行至关重要。