... plunger 液力挺柱柱塞 oil pressure gauge calibration 电压表电阻 Observing angle 观测角 ...
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With piston oxygen pressure gauge, pressure gauge calibration must adopt isolation tank and water will do spacer piston pressure gauge of oil isolation, make water into oxygen table.
用活塞压力计校验氧压力表时，必需采用隔离罐，用水做隔离液将活塞压力计的油隔离，使水进入氧气表中。
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