Five-axis NC machine tool with small pendulum 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。
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。
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.
当然，跟地球的引力比较，大球的引力极其微小；所以，小球的摆动比通常所见的摆动要缓慢得多。
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