2. The principle of
leather matting and the synthesis of
lea th er matting agent were introduced.
讨论了涂膜消光的原理及其方法,并就消光剂的合成进行了详细的论述。
3. This papers deals with profitable exploration of three kinds of
lea ener-management models under Total credit system, based on the reality of LIT.
本文立足于本校的实际情况,对在完全学分制下建立三种新的学生管理模式,进行了有益的探索。