名词
中文翻译：正负螺丝
同义词：
['positive and negative screw', 'plus and minus screw']
例句：
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1. The car has a plus-minus screw that allows you to adjust the wheel alignment.
这辆车有一个正负螺丝，可以让你调整车轮的对齐。
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2.The engineer used a plus-minus screw to hold the bolt in place.
工程师使用一个正负螺丝来固定螺栓。
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3.The plus-minus screw is a useful tool for measuring distances and angles.
正负螺丝是一个测量距离和角度的有用工具。