名词
中文翻译：真空扩展计同义词
同义词：
['vacuum gauge', 'vacuum meter']
例句：
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1. The vacuum extensimeter was used to measure the air pressure in the chamber.
真空扩展计被用来测量腔体内的气压。
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2. The vacuum extensimeter was an essential tool for testing the vacuum of a vacuum pump.
真空扩展计是测试真空泵真空度的重要工具。
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3. The vacuum extensimeter was used to monitor the performance of the vacuum system during maintenance.
真空扩展计被用来监测维护期间真空系统的性能。