用于双绳或单绳的下降。

For descending on single or double rope.

youdao

在过去，攀登者的选择很有限，一条11毫米的单绳，9毫米的半绳以及8毫米双绳。

In the past, climbers had limited choices - a 11mm single, a 9mm half and 8mm twins.

youdao

我喜欢由550伞绳编成的拉链拉手，但我不喜欢单绳结的式样，我喜欢双绳结式的，更短些，而且能防止钩挂和扭曲打结。

Although I do like 550 cord zipper pulls I'm starting to dislike the long single knot style in favor of shorter 2 knot styles to prevent snagging and cord rotation.

youdao