gap n. 1.(墙壁、篱笆等的)裂口,裂缝;豁口,缺口。 【军事】突破口。 2.(意见的)龃龉,分歧;隔阂,距离,差距。 3.山峡,隘口。 4.间隙;【机械工程】火花隙;【航空】(双翼机的)翼隔。 5.(文章等中的)脱漏,中断;(知识等的)空白,缺陷。 a gap in historical records 史料的中断。 credibility gap 信用差距。 generation gap代沟〔不同代的人之间的思想隔阂〕。 gaps between teeth 齿缝。 the gap between imports and exports 进出口差额。 bridge [close, fill, stop, supply] a gap 填补空白,弥补缺陷。 stand in the gap 首当其冲,挺身阻挡。 vt. (-pp-) 使豁裂,使生罅隙。 vi. 豁开。
But the composite must have enough pervious light gap between conducting particles, or the particle size is less than the wavelength of visible light . so preparation of indium, tin oxide ( in2o3 / sno2 ) nano powders by promising method of sol-gel in liquid and surface modification were studied . we hope to summarize general nano preparation, modification and characterization methods 所以本研究的目的是利用液相法中较有前途的溶胶-凝胶法制备氧化铟、氧化锡及其复合氧化物(in_2o_3sno_2)纳米粉料,并对其进行表面修饰和综合表征,为大课题提供原材料并可望总结出普遍可行的纳米粒子制备、修饰及表征方法。