名词
中文翻译：初级太阳齿轮
同义词：
['primary gear', 'primary gearing例句：1. The primary sun gear is crucial for the operation of the machine.（初级太阳齿轮对于机器的运行至关重要。）']
例句：
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1. The primary sun gear is crucial for the operation of the machine.
初级太阳齿轮对于机器的运行至关重要。
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2. The primary sun gear is responsible for transmitting power from the engine to the wheels.
初级太阳齿轮负责将发动机的动力传递给车轮。
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3.The primary sun gear is designed to minimize wear and tear on the engine.
初级太阳齿轮的设计旨在最小化对发动机的磨损。