1) poor-boy core barrel
手工制管式取心筒
2) biscuit cutter
短岩心取心筒;笨拙管工
3) basket-type core barrel
篮式取心筒
4) double-tube core barrel,swivel type
内筒不转式双筒取心筒
5) double-tube core barrel ,rigid type
内筒转动式双筒取心筒
6) barrel-type core bit
筒式取心钻头