1. Tugs are available for assistance of berthing, unberthing, escorting and salvage operation withhorsepower from 624hp to 3400hp.
   汕头港区备有624至3400匹马力的拖轮，协助船舶靠离泊以及提供护航和救助等服务。
2. In this paper,the techniques of hydrofoil truing over and maneuvering for berthing and unberthing are discussed, which aims to propose safer practical operations.
   本文探讨了水翼船的掉头、靠离泊操作特征,旨在提高水翼船实际操作安全性。

声明：以上例句、词性分类均由互联网资源自动生成，未经过人工审核，其表达内容亦不代表本软件的观点；若发现问题，欢迎向我们指正。