套管、保护管 casing protected pipe ; casing pipe
外保护套管 outside protective case
油井套管保护 well-casing protection
保护回接套管柱 scab tieback string
陶瓷保护套管 ceramic protection tube
可挠金属电线保护套管 Flexible metal conduits
热缩低压母线保护套管 ZRG
保护性双套管标本刷 protected specimens brush ; PSB
双套管保护性毛刷 PSB ; protected specimens brush
熔接保护套管 protector of optical connecting
采用组合钻具进行跟管钻进，通过随钻跟入的套管保护孔壁，解决因钻孔垮塌导致钻探效率和岩心采取率低等技术难题。
The problems of low drilling efficiency and low core recovery due to borehole collapse were solved with pulling in casing while drilling through using combined BHA with casing.
套管作为管道穿越处的保护管，在穿越时能对管道的防蚀层起到很好的保护作用。
As protective pipe of pipeline crossing, casings can protect the protective coating of inner pipeline very well.
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