Fasteners, the bolt tightening torque of 65 n. M, shall not be destroyed.
采用的扣件，在螺栓拧紧扭力矩达65n.m时，不得发生破坏。
Bolt (n. ) metal secured into a drilled hole in the rock as means of protection. Often accompanied by a hanger, an eyelet to which a carabiner can attach.
一种金属器材，通常钉在岩石上作为保护点，上面有洞可以连接钩环。
Bolt (n. ) metal secured into a drilled hole in the rock as means of protection. Often accompanied by a hanger, an eyelet to which a carabiner can attach.
一种金属器材，通常钉在岩石上作为保护点，上面有洞可以连接钩环。
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