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jumbolter

n. 锚杆钻机，杆柱钻机

1、杆柱钻机

... jumbogroup ==> 巨群(频率) jumbolter ==> 杆柱钻机,锚杆钻机 Jumman circuit ==> 格子式滤波电路 ...

2、锚杆钻机

... 锚定anchoringgrappling 锚杆钻机jumbolter 锚钩索backrope ...

Pneumatic jumbolter气动锚杆钻机

hydraulic jumbolter液压锚杆钻机

boring with jumbolter锚杆钻机钻孔法

经济学

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