名词
中文翻译：直径规
同义词：
['diameter gauge', 'diameter measuring instrument']
例句：
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1. The engineer used a diameter gauge to measure the pipe's inside diameter.
工程师使用直径规来测量管道的内部直径。
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2. The manufacturer of the new car uses a diameter gauge to ensure the vehicle meets safety standards.
这款新车的制造商使用直径规来确保车辆符合安全标准。
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3.The technician used a diameter gauge to check the accuracy of the machine's measurement.
技术员使用直径规来检查机器测量的准确性。