名词
中文翻译：粗齿齿轮
同义词：
['coarse gear', 'coarse gear例句：1. The car has a coarse-pitch gear that makes it easy to shift gears.（这辆车有一个粗齿齿轮，使得换挡变得很容易。）']
例句：
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1. The car has a coarse-pitch gear that makes it easy to shift gears.
这辆车有一个粗齿齿轮，使得换挡变得很容易。
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2.In the old days, people used coarse-pitch gears for their bicycles.
在旧时代，人们用粗齿齿轮来骑自行车。
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3. The engineer replaced the worn-out coarse-pitch gear with a new one.
工程师用一个新的粗齿齿轮替换了磨损的齿轮。