Use to unscrew Flame Adjuster Nut & Pump's Stop Nut.用来旋松火焰调节器螺帽 和 泵的限位螺帽.I can't unscrew the top of this bottle.我拧不下这瓶的盖子.to unscrew the bonnet旋转拧松阀盖I can't unscrew the lid of this jar.这个瓶盖儿我拧不开。...
Organization and assembly of phospholipid molecules into membranes, micelles , tubules, etc.磷脂质分子组织并组合成细胞膜 、 微胶粒 、 细胞小管等.Dipolar charges are a type of intermolecular force that has attraction between polar molecules.偶极力是...