Stone cage net protective structure is in itself under the actionofgravity for the installation.
石笼网防护结构是在其本身重力的作用下进行安装的。
2
Three is due to serious overloading, in under the actionofgravity acceleration, increase the vehicle motion inertia, led directly to the brake failure.
三是由于严重超载,在重力加速度的作用下,加大了车辆运动惯性,直接导致刹车失灵。
3
Automatic water sluice gate is under the waterpower and actionofgravity, in the given water height condition; and it start and stop automatically as the flux change.