However , the noise spectrum of the ash exhauster always centers at low frequency range.排粉机噪声呈明显的低频特性.The utility model relates a linkage device of a cooking fume exhauster and a gas stove.一种燃气炉与抽油烟机的联动装置....
他帮我们填满知识上的空白.He helped us to fill in a big gap in our knowledge.他们正在设法把空隙填满.They are trying to block in the space.湖里几乎快被淤泥和植物填满了。The lake was almost solid with silt and vegetation....
Their luck had simply run out. Still, never fear.他们的好运已经到头了。不过，别担心。We had lots before but now we've run out.我们以前有很多，但是现在已经用完了。Dolly's store of drinking glasses had run out.多利存放的酒杯已经用完了。...