The Paper describes the applications of Roselle and the ex tracting and re fining procedures of Roselle seed oil.
阐述了玫瑰茄的用途，玫瑰茄籽油的制取及精炼工艺。
2
This paper advances some measures for frequency control system of rope-tracting rail vehicles based on PLC in Zhangcun Coalmine.
对漳村煤矿基于PLC控制的绳牵引卡轨车变频调速控制系统提出了若干抗干扰措施。
3
The research of dynamic competition is a fast - developing branch of strategic management theory since of 1980s early, and at-tracting increasing attention from abroad and home.