优先浮选—浮选+重选
preferential flotation-flotation and gravity process
二级选课
the second choose lessons
过[氧]二碳酸二（二级丁酯）
di-sec-butyl perdicarbonate
di-sec-butyl peroxy-dicarbonate
di-sec-butyl peroxy-dicarbonate
di-sec-butyl perdicarbonate
分级浮选
classification and flotation
classified floatation
sizing flotation
磁选—浮选
Magnetic Separation-flotation
双水相气浮浮选
aqueous two-phase gas floatation
double aqueous phase gas floatation
two-water phase gas floatation
2-呋喃甲酸二级丁酯
2-furoic acid sec-butyl ester
3,6-二-[二甲氨基]-二苯并碘六环镝二氨三乙酸配合物
6-di-(dimethylamino)-dibenzopyrodonium salt of dysprosium dinitriltriacetate complex anion
3－二（二苄氧膦酰基）丙醇
3-bis (dibenzyloxyphosphoryl) propanol
3－二（二苄氧膦酰基）丙酸
3-bis (dibenzyloxy phosphoryl) propionic acid
4,4-二(二乙氧膦酰)-丁酸
Bis(diethoxyphosphoryl) butanoic acid