internal jetting

例句：

1. 1. The internaljetting system is designed to improve theefficiency of the oil extraction process.
   内部喷射系统旨在提高石油提取过程的效率。
2. 2. During theconstruction phase, the team used internal jetting to clear the debris from the tunnel.
   在施工阶段，团队使用内部喷射清除隧道内的碎片。
3. 3. The engineers were concernedabout the potential for internal jetting tocause damage to the surrounding structures.
   工程师们担心内部喷射可能对周围结构造成损害。