The grafted membranes had good hydrophilicity compared with the hydrophobicity of base film.从各个角度对膜的亲水性能作了定量研究,提出了水合数与表面自由能的计算方法.Especially , polyethylene glycol ( PEG ) on the main chain of the polyurethane can offer go...
A thrush alighted on a branch of the pine tree.一只鸫落在松树的树枝上。There is an old pine tree in front of the house.房子前面有一株老松树.We always decorated a grand 6m pine tree on our front lawn with soft, twinkly blue lights.我们总是给屋前草坪上一棵...
A shaft on the piston forms the armature of a coil.活塞轴作线圈的衔铁.When soldier brandish sword pricks armature, craftsman cried to attack.士兵挥剑刺盔甲时, 工匠大叫一声扑了过去.The iron with the wound coils on it is called an armature.缠绕着线圈的铁心叫...