名词
中文翻译：平直齿轮
同义词：
['straight gear', 'plain gear例句：1. The new car has a plain bevel gear that makes it easy to start and accelerate.（这辆新车有一个平直齿轮，使得启动和加速变得容易。）2. The old machine had a plain bevel gear that was difficult to replace.（旧机器有一个平直齿轮，很难更换。）']
例句：
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1. The new car has a plain bevel gear that makes it easy to start and accelerate.
这辆新车有一个平直齿轮，使得启动和加速变得容易。
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2. The old machine had a plain bevel gear that was difficult to replace.
旧机器有一个平直齿轮，很难更换。
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3.The engineer used a plain bevel gear to make the machine run smoothly.
工程师使用一个平直齿轮使机器运行顺畅。