substance n. 1.物质,材料;【哲学】实体,本体,本质 (opp. appearance)。 2.实质,内容;(故事等的)要旨,要领,大意,梗概。 3.财产,资产,资力。 4.【神学】灵,(三位一体的)体。 5.(织品的)质地。 The substance is usually more important than the form. 内容总是比形式重要。 I can tell you the substance. 我可以讲大意给你听。 a porous substance 多孔体。 a man of substance 资产家,财主。 in substance 实体上,本质上;大体上。 sacrifice the substance for the shadow 只图虚名不求实效,舍本逐末。 waste one's substance, 浪费财产。
Analysis and limitation requirement of toxic and harmful substances in paper product 纸制品中有毒有害物质分析及限量要求
Purifying water quality : the first will be through cell amine and ammonia nitrate into substance , then later nitrate into ammonia volatile substances , so as to achieve degradation of ammonia and some toxic and harmful substances , three - dimensional improvement of water quality , water color , improve transparency and efficiency of the effect of rapid detoxification , and the establishment of the ecological balance of water for aquaculture environment 净化水质:首先通过菌体的活动将胺及氨类物质转化成硝酸盐,尔后再将硝酸盐转化成挥发性物质氨,从而达到降解水中氨氮及一些有毒有害物质,立体改善水质、水色、提高透明度,并具有高效快速解毒的功效,建立养殖水环境的生态平衡。