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Methods: The vacuum negative pressure meter and the delayed control line were used.
方法: 用真空负压表、延迟控制线路,接通电话机免提键、存储拨号键.
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- 相关词组
- active earth pressure主动土压力;
- water pressure test in borehole钻孔压水试验
- cubic meter立方米;
- water pressure distribution水压分布
- blood pressuren.血压;
- air pressuren.气压,风压;
- absolute pressuren.绝对压强;
- differential pressure压差;压力降;压力落差;差动压力;
- back pressure背压;反压力;
- water pressure drive水压驱动
- air flow meter空气流量计;
- water pressure test for strength and tightness水压强度和密封性试验
- at rest earth pressure coefficient土的静压系数;
- water cut meter含水率仪
- bearing pressure支承压力;支力;轴承压力;承载压强;
- balance pressure平衡压力;
- water flow impact pressure水流冲击力
- atmospheric pressuren.大气压力;
- central venous pressure中心静脉压;
- water pressure test for strength水压强度试验
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