Five-axis NC machine tool with smallpendulum Angle table can not carry out continuous cutting of the part of centrifugal turbine because of the structure of machine tool.
由于工作台摆动角度受机床结构的限制,小摆角五坐标数控机床不能直接进行离心叶轮的连续加工。
2
Unlike the original form used in early pendulum clocks, the anchor escapement permitted the pendulum to travel in a very small arc.
与在早期摆钟中使用的原始形式不同,锚擒纵装置允许钟摆沿非常小的弧线运动。
3
Of course this force was exceedingly small, compared with that of the earth; and for that reason the vibrations of this pendulum were by far slower than those of a common one.