英 [ˈtʌɡə(r)] 美 [ˈtʌɡər]
n. 拖拉装置绞车;轻便绞车;拖拉器;卷扬机
矿用轻便小绞车
矿用轻便绞车
轻便绞车
拖拉装置绞车
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拖拉装置绞车;[矿业]轻便绞车;拖拉器;卷扬机
When picking up or setting down drill collar stands larger than 6 1/4" on the floor board, always snub with the air tugger."
当在钻杆盒上提起或放置直径大于6 1/4〞的钻铤立柱时,一定要用气动绞车拉住以保安全。
Do not make up or break out the bit on a single joint of DC. If this is absolutely necessary, always snub drill collar with the air tugger.
不要在一单根钻铤上卸钻头,如果确实需要这样做,要用气动绞车拉住钻铤。
Just the jokes and the winners... and the obit-reel, which is always a heart-tugger.
Yet current casting is not so monolithic, and it varies from cable to network, from sick-joke satire to earnest heart-tugger.