挂: Ⅰ动词1.(使物体附着于某处) hang; put up; suspend 短语和例子把帽子挂在衣架上 put [hang] the cap on the coat hanger; 挂幌子 (of shops) put up a signboard; 墙上挂着一幅画。 a picture is hanging on the wall. 天上挂着一轮明月。 a bright
浓度: potency; thickness; concentration; consistence; strength; consistency; density 短语和例子当量浓度 [化学] equivalent concentration; 高浓度 high concentration; 矿浆浓度 pulp density
