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.

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当他走到绳长一半的时候，那扇小门再度开启。 一个身穿彩衣像个小丑的家伙跳了出来，快速走到第一个人的后边。

When he was just midway across, the little door opened once more, and a gaudily-dressed fellow like a buffoon sprang out, and went rapidly after the first one.

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运用“全内”操作技术，因对长度要求的减少，故仅使用一条腘绳肌肌腱（半腱肌肌腱或骨薄肌肌腱）是可行的。

With a new "All-inside" technique, using only one hamstrings tendon is possible because of a reduction in length requirements.

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