However, the test gauge also is an aneroid gauge and thus is subject to error itself.Therefore the test gauge must be tested for accuracy by a mercury manometer.是什么意思_However, the test gauge also is an aneroid gauge and thus is subject to error itself.Therefore the test gauge must be tested for accuracy by a mercury manometer.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句