不起伏的
不波动的
... a firm bargain; a firm offer.明确的协议；固定的出价 Unfluctuating; steady:不浮动的；稳固的： Stock prices are still firm.证券价格仍都很稳定 ...
The cutters used in high speed machining(HSM) have poor rigidity, therefore the method fits to HSM of die cavity due to the unfluctuating cutting force characteristic.
其切削力平稳的特性更适合于模具型腔的高速数控加工，可以克服高速加工用刀具刚性差的不足。