Don't ever use any other type of carabiner for belaying.
不要用其他的锁做保护.
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The responsible dealer will have information on carabiner strength.
销售商应该有铁锁负重量的信息.
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The carabiner must not be obstructed, any pressure from the rock reduces its strength.
锁不能被岩石或者挂片阻碍, 任何来自岩石的压力都会降低锁的强度.
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Make sure you buy a good pear - shaped locking carabiner ( either screw - gate or locking - gate type ).
要确定你买的是个梨形锁,带丝扣的或自动锁的都可以.
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