twin press,twinver com-press是什么意思

用法例句

Problems existed in sealing inspection by using the eccentric water-allocation pipe string dual pressure meter are described,which include that the seal ring is easy to be broken down in the sealing section,where the setting reliability is hard to be guaranteed and there is not any discharging valve in the sealing section,thus there is a high load on the well-test wire line in sealing removal.

概述了偏心配水管柱双压力计验封工艺存在的问题:一是验封密封段密封圈易破损,座封可靠性无法验证;二是验封密封段没有泄流阀,解封时试井钢丝负荷大。