Change the filter cartridge as often as instructed by the manufacturer.按照生产厂家的使用说明，经常更换过滤筒。This rifle only holds one cartridge.这支来复枪只能装一发子弹.He was attacked by a security man who tried to wrest away a gas cartridge.他遭到一名保...
The natural logarithm of this ratio is called the logarithmic decrement.此比率自然对数称为对数的减量.The characteristic of the logarithm 6.3214 is 6.对数6.3214的首数是6.His first designs were for a machine to calculate such things as logari...