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zawn

1、[矿业]地下岩洞

... 地下选矿厂 underground mill 地下岩洞 zawn 地下引入线 underground lead-in ...

2、一个深的狭窄的突起或是悬崖岩壁的切入点

...YDS - 尤塞米提十进制系统。北美攀岩难度的分级标准Zawn 一个深的狭窄的突起或是悬崖岩壁的切入点Z-pulley system - 用相对较小的力量提升重物的复杂的绳索系统。很好地用于救援和拖拉背包 ...

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