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to phrases
岩心钻机
yánxīn zuànjī
gen.
drill
tech.
core boring rig
;
core drill rig
岩心钻机
利用管状钻头的回转作用切削、磨碎岩石,并不断向深部钻进以提取岩心的机械
yánxīn zuànjī
expl.
core drill
岩心钻机:
2 phrases
in 2 subjects
Earth sciences
1
General
1
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