First: the position of the first bolt invariably leads to a greater Angle in the rope as the belayer stands away from the vertical plane.

第一：因为保护者站在离开岩壁的地方，第一把快挂总是导致通过它的绳子弯曲成很大的拐角。

Alternatively drop from bolt to bolt until there is enough rope to lower off!

也可以从一个又一个耳片下降，直到有足够的绳子可以做先锋撤退。

The main product has followed several types: Z1 type (stone soil, take the stone as the major and stone collapsed) : Bolt, support rope, steel mesh, the grid network.

主要产品有以下几种类型：Z1型(石夹土，以石为主、石崩)：锚杆、支撑绳、钢丝网、格栅网。

If you are to the right or left of the bolt, then the rope needs to be outside of your feet.

如果在挂片的左侧或右侧，绳子就要放在腿的外侧。

It is preferable to top-rope the route first to assess natural protection placements and to mark best bolt locations.

较好的方式是先采上方确保，以估定天然支点位置，及标记最佳的施工位置。