Early computer's computational speedlow and the prevailing scientific computing and data processing is not affected, but can not meet the requirements of real-time control machine.
早期计算机的运算速度低，对当时的科学计算和数据处理影响还不大，但不能适应机床实时控制的要求。
2
Excellent antifriction capability, can make the machine in lowspeed vibration or discontinuous sliding reduced to the minimum.
优良的减摩性能，可使机床在低速下将振动或间断滑动减为最小。
3
The lowspeedmachine usually has a short and fat structure in order to use effectively the rotating speed of the rotor, as contrasted with the long and thin structure of the high speed machine.