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....
A special dispensation may be obtained from the domestic union concerned.从国内相关的工会那儿或许能得到一项特许。As the domestic market becomes saturated, firms begin to export the product.由于国内市场饱和，各公司开始外销。The house is a textbook example of...