natural adj. 1.自然界的;关于自然界的。 2.天然的;未开垦的;野生的。 3.固有的,生来的,天赋的(opp. acquired);出乎本性的。 4.自然的,不加修饰的,不加做作的。 5.本来的;(论理上或人情上)当然的,不勉强的,常态的;普通的,平常的。 6.逼真的。 7.私生的,庶出的。 8.【音乐】本位的;标明本位号的。 9.【数学】自然数的;真数的。 the natural day 自然日〔由日出至日没〕。 the natural forces 自然力。 natural phenomena 自然现象。 the natural world 自然界。 the natural year 自然年,太阳年。 natural gas 天然气。 natural resources 天然资源。 It is quite natural that you (should) succeed [for you to succeed]. 你的成功是很自然的。 Speaking comes natural to him. 他的演说流畅而自然。 natural disposition 天性,本性。 a natural gift 天资,天禀。 natural poet 天生的诗人。 natural vibration 固有振动。 natural sine 正弦真数。 one's natural life 寿命,寿限。 natural wages 实物工资。 a natural sign 【音乐】本位记号。 n. 1.(生来的)白痴。 2.【音乐】(风琴等的)白键;本位音;本位号(NE224)。 3.(二十一点牌戏)一分牌就赢的两张牌。 4.〔美俚〕未曾受过训练而表演得意外出色的人,意外出色的表演;〔口语〕对某方面(似乎)有天生特长的人。 5.〔美口〕可望立即成功的事物。
Long-chained charged synthetic and natural polymers can act to destabilize colloids by forming a bridge between one colloid and another . 长链带电的合成聚合物和天然聚合物,能够在胶体间搭桥而使胶体不稳定。
This natural polymer is fast hydrating dispersible guar gum 这是一种快速溶胀型天然瓜尔胶多聚糖。
Preparation of natural polymer flocculants chitosan from crust of shrimp and crab 由虾蟹壳制取天然高分子絮凝剂壳聚糖
Progress in studies on coordination chemistry and applications of natural polymer chitosan chitin 壳聚糖的配位化学和配合物应用的研究进展
E ? ttp6 is a thickening agent , specially suitable for the textile industry and extracted from the natural polymers by modification Ttp6是从天然高分子聚合物经过改性的一种增稠剂。
Chitin is a natural polymer that has rich resources , its research and development have been paid much attention to in the world , the dea cetylation product of which - chitosan is widely used for its distinctive physico chemical and biological characteristics 作为一种资源极其丰富的天然高分子化合物,甲壳素的研究与开发受到各国的普遍重视,其经脱乙酰化的产物- -壳聚糖因具独特的物化及生物学特性而被广泛应用。
In this paper , the new development of research on copolymer scale inhibitor and dispersant was introduced in details from several aspects , such as natural polymer scale inhibitors , carboxylic acid copolymer scale inhibitors , sulfonic acid copolymer scale inhibitors , phosphor - containing polymer scale inhibitors and new green copolymer scale inhibitors etc . . some advices on the development of research on copolymer scale inhibitor were put forward 从天然聚合物、羧酸类聚合物、磺酸类聚合物、含磷聚合物以及新型绿色聚合物等几个方面,介绍了我国聚合物阻垢剂的研究新进展,并提出其今后发展的一些建议。
Chitin / chitosan is a natural polymer that has rich resources and wide - ranging uses . now there are more and more countries and research setup having paid attention to it ' s exploitation and research . this text analyses and prospects for the new trends in the researching field of chitin / chitosan 描述:作为一种资源丰富、用途广泛的天然高分子化合物,甲壳素/壳聚糖产品的开发研究已引起越来越多的国家和研究机构的重视,本文对该领域研究和发展的新动向进行了分析和展望。
Abstract : chitin / chitosan is a natural polymer that has rich resources and wide - ranging uses . now there are more and more countries and research setup having paid attention to it " s exploitation and research . this text analyses and prospects for the new trends in the researching field of chitin / chitosan 文摘:作为一种资源丰富、用途广泛的天然高分子化合物,甲壳素/壳聚糖产品的开发研究已引起越来越多的国家和研究机构的重视,本文对该领域研究和发展的新动向进行了分析和展望。