Hydrocarbons ( HC ), like carbon monoxide, represent unburned and wasted fuel.碳氢化合物 ( HC ) 像一氧化碳一样, 为未燃尽的和被浪费掉的燃料.With this restricted frequency range it is not applicable to hydrocarbons.这个较紧缩的频率范围不适用于烃类.These compounds...
他带头为新郎新娘的健康祝酒.He led the way in drinking the health of the newlyweds.新娘的手被指甲花染上漂亮的图案.Brides'hands are painted with beautiful patterns in henna.新娘的脸上蒙着白色的面纱.The bride's face was covered in a white veil....