名词
中文翻译：球规
同义词：
['ballometer', 'ballast例句：1. The engineer used a ball gauge to measure the diameter of the pipe.（工程师使用球规测量管道的直径。）']
例句：
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1. The engineer used a ball gauge to measure the diameter of the pipe.
工程师使用球规测量管道的直径。
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2.The ball gauge was used to check the accuracy of the machine's measurements.
球规用于检查机器测量的准确性。
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3. The ball gauge was essential for ensuring the safety of the construction site.
球规对于确保施工现场的安全至关重要。