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This is done with a dry test meter calibrated for methane.
可采用为甲烷作出校准的干式检测仪来完成这一操作。
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The meter buildup with test system, transmit note structure, and body.
仪表由测量系统、传动指示机构和外壳等组成。
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The meter buildup with test system, transmit note structure, and body.
仪表由测量系统、传动指示机构和外壳等组成。
youdao