A relatively short, heavy-walled completion component installed in areas where turbulence is anticipated.
相对较短的厚壁完井部件，它装在预计发生紊流的区域。
2
On to the field remained only the walled tabor camp of the Cossacks, which was protected from being immediately overrun that day and the next when storms brought unusually heavy rain.
从流窜那天开始，战场上，只剩下壁垒化的哥萨克辎重车车垒营地提供保护，接着，暴风带来不寻常的大雨。
3
A section of heavywalled tubing that is placed across any perforated interval through which the production tubing must pass, such as may be required in multiple zone completions.