重点阐述了数控车床的进给系统设计时实现多脉冲的方法，该方法无论是设计机床或者是改造机床都可以采用。
This paper mainly discusses the method that can realize multiple impulses in the feed setting system design of digital control lathe. This method can be adopted in the lathe design and reconstruction.
蟹状星云脉冲星本身，散发的能量比太阳多，150000倍。
So the Crab Pulsar alone generates about 150,000 times more power than the sun.
这架飞机有一个12马力(8.9千瓦)的汽油机——并不比Pic card先生的太阳脉冲号上4个6千瓦的电动机功率多。
It had a petrol engine producing 12 horsepower (8.9kw) -not much more than each of the four 6kw electric motors on Mr Piccard's Solar Impulse.
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