pick-up tongs 葫芦夹钳
make-up tongs 接管子用大钳
back up chain tongs 咬定链钳
double pick-up tongs 双口锻工钳
double pick up tongs 双口锻工钳
Pick-up p tongs 葫芦夹钳
Lead and backup tong-men should not stand between the two pipe tongs while the driller is making up or breaking out pipe or collars.
当司钻正在上卸钻杆和钻铤时，内外钳工不要站在两个大钳之间。
Install the make-up line (s) and snub line to the rig tongs. The snub line should be at least twice the size of the tong line.
装上大钳锚头绳和钳尾绳，钳尾绳的外径至少是大钳锚头绳的两倍。
He picked up the hot metal with a pair of tongs.
他用一把钳子夹起这块热金属。
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