Whether you're aiming for layers of plywood or cardboard or a bale of hay, if that foot-long blade hits an Angle, it could come ricocheting back at you.
不管是几层胶合板、纸板还是一大捆干草，万一飞刀打在不平的表面上，它很可能会朝你自己反弹回来。
2
I may have to re-weld the top tube for vertical head tube and add some length for more foot to blade clearance.
我可能必须重新焊接管顶端的垂直领导管并增加一些长度为更多的步行刀片清除。
3
The value of passive earth pressure on the footblade of open caisson varied between the value of the earth pressure at rest and the limit value of passive earth pressure.