空气是由多种气体混合组成的。
它由不同的碳氢化合物混合组成，其主要组成成分是烷烃。
It is a mixture of different hydrocarbons, its main components are paraffins.
这是地板的载体，由高度压缩的木质纤维与合成树脂粘合剂混合组成。
This is the flooring carrier and consists of highly compressed wood fibers mixed with a synthetic resin adhesive.
应用推荐