This landing was less dire: the nose wheel gear collapsed after the first glide flight for the X-2 in 1952.
这是不可怕的登陆:鼻子齿轮后,1952年第一次滑行中的X - 2飞行倒塌。
2
This subject is about thermal deformation error detection and compensation of an YKX3132G six axes CNC gear-hobber machine's worktable in X axis direction.