检查动力钳和尾绳是否在钻台上。
连接猫头绳和钳尾绳到大钳上。
内钳必须安装钳尾绳并固定在钳尾桩上。
The breakout tong should be snubbed, preferably to an anchor post.
内钳的钳尾绳应到底座或固定在底座上的钳尾桩上；
The backup tong should be snubbed to the substructure or to an anchor post attached to the substructure.
必须定期检查大钳尾绳，使其处于良好的备用状态。
Snub lines for the rig tongs must be inspected at regular intervals and be in good working condition.
有时候会把钳尾绳装在井架大腿上，这种方法不可取。
Sometimes the tongs are snubbed to the derrick leg. This method should not be used.
大钳销子，尾绳销子和螺栓都必须用适当尺寸的开口销加以固定。
Rig tong pins, shackle pins and bolts must be secured with the proper size of split pins.
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。
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.
我要绳尾的圆形按扭也是有亚克力与灯罩相配。
I want the knob at the end of the string to be tinted acrylic to match with the lampshade.
我要绳尾的圆形按扭也是有亚克力与灯罩相配。
I want the knob at the end of the string to be tinted acrylic to match with the lampshade.
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