此举既避免了上下山掘进过程中，巷道变形挤压容易造成横梁弯曲，还延长了提升机的寿命周期。
This not only avoids the park tunneling process, the tunnel deformation caused by squeezing the beam bending easily, but also extend the life cycle of the hoist.
此举既避免了上下山掘进过程中，巷道变形挤压容易造成横梁弯曲，还延长了提升机的寿命周期。
This not only avoids the park tunneling process, the tunnel deformation caused by squeezing the beam bending easily, but also extend the life cycle of the hoist.
应用推荐