求翻译：使用合格的安全带，且要将安全带挂在腰部以上牢固的物件上；在高空改变作业位置时，安全带不能解除；高空行走时安全带要挂在拉设的水平扶手绳上。是什么意思？

Seat belts, the use of qualified and want to seat belt hanging on a solid object above the waist; altitude change the operating position, the seat belt can not be lifted; high altitude walking belts hanging in the pull level handrails ropes.

Use of the qualified of the belt, and you want to be belt mounted securely in the items above the waist; the high-altitude changes on job position, seat belt cannot be lifted; high-altitude belt when you are walking to be attached to the drop-down set of horizontal handrails on the rope.

Uses the qualified safety belt, also must hang the safety belt above the waist on the reliable thing; When upper air change work position, the safety belt cannot relieve; The upper air walks when the safety belt must hang in on the horizontal

Using approved seat belt and seat belt hanging above the waist on a solid object; when at a height change job location, seat belts cannot be lifted; high altitude walking belt on a horizontal handrail rope to hang in the install.