seal pipe

基本解释

A substance, such as dried clay or cement, used to pack and seal pipe joints and other connections or coat a porous surface in order to make it tight.
封泥，水泥封涂一种物质，如晒干的粘土或水泥，用于绑裹和密封管道的连接处和其它连接点或覆盖以有孔的表面以使之牢固。
dict.cn
A substance, such as dried clay or cement, used to pack and seal pipe joints and other connections or coat a porous surface in order to make it tight.
封泥，水泥封涂一种物质，如晒干的粘土或水泥，用于绑裹和密封管道的连接处和其它连接。
The testing result shows that sealing compound performance is good, costs are low, and is suitable for static seal of pipe line and valve under different temperature conditions.
测试结果表明，该密封胶性能优良，成本低廉，可适用于不同温度条件下的管线阀门等静密封。

In a blowout, the BOP has the ability to guillotine-slice through the pipe and seal the well.
FORBES: BP Oil Spill Investigation Will Focus On Blowout Preventers