He had an encyclopedic command of the field of knowledge, and by a word or a phase, by delicate rapier thrust, he punctured them.他所掌握的知识就像百科全书那样丰富。用一个字或一句话，用几句灵敏机智的对答，他就洞穿了对方的要害。Cognitive context consists of lexical info...
一种胶体,就其整体而言可认为不带净电荷.A sol considered as a whole cannot have a net charge.照像材料含有亲水胶体的感蓝卤化银卤剂层.The photographic elements contain a blue - sensitive hydrophilic colloid silver halide emulsion layer.胶体的弹性性质可能随着它的寿命而变化的.The e...