1.pretreat water with a coagulant before filtering
过滤前用凝结剂预先处理
2.Solid acid alchlor catalyst was prepared from anhydrous aluminium trichloride through liquid solid solvent method,with pretreated bentonite as support.
三氯化铝为原料,并处理过的膨润土为载体,采用液固溶剂法制备固体酸催化剂。
3.Results Compared with the saline group and the saralasin-pretreated group,the lung tissue wet/dry ratio and lung injury score were significantly increased in meconium group(P <0.05);
4.The flowers were pretreated by (A) emasculating then bagging, (B) removal of stigma and (C) crosspollination, respectively as compared with control: open-pollination after emasculation.