He can tie a bowline .

他能系帆角索。

Double bowline is used by many climbers as their primary knot.

双布林结通常是攀登者最初使用的绳结。

The bow protrudes from the bowline of large ships just below the waterline.

大型船只在吃水线下的部位，从前体纵剖线伸出一个球鼻形船首。

Bowline - A knot frequently used for tying the middle climber onto a glacier rope team, among other uses.

布林结。一种常用的绳结，通常用于登山中将中间位置的攀登者连接到结组中。