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双动双层岩芯管
eng.geol.
double-tube rigid-type core barrel
;
rigid-type double-tube core barrel
tech.
core head of double tube-rigid type
;
double tube rigid barrel
;
double tube rigid type core barrel
;
rigid double tube
;
rigid-type double tube core barrel
;
stationary inner-tube core barrel
双动双层 岩芯 管
:
8 phrases
in 2 subjects
Engineering geology
3
Technology
5
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