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- A protein substance that is the organic basis of mollusk shells. 贝壳硬蛋白作为软体动物贝壳有机基质的蛋白质
- A colorless crystalline organic base,C5H4N4,that is the parent compound of various biologically important derivatives. 嘌呤一种无色晶体状有机碱C5H4N4，它是生物上许多重要衍生物的母体化合物
- A crystalline organic base,C4H4N2,that is the parent substance of various biologically important derivatives. 嘧啶一种晶状生物碱，C4H4N2，是多种生物性地重要衍生物的亲本物质
- A crystalline organic base, C4H4N2, that is the parent substance of various biologically important derivatives. 嘧啶一种晶状生物碱，C4H4N2，是多种生物性地重要衍生物的亲本物质
- Triisopropyl phosphite was synthsized from phosphorus trichloride and isopropanol using pyridine as an organic base. 采用三氯化磷、异丙醇为原料,吡啶为有机碱合成亚磷酸三异丙酯。
- A compound resulting or regarded as resulting from the reaction of hydrochloric acid with an organic base. 氯化氢一种合成物，是或被认为是盐酸与一种有机碱的反应的结果
- An aromatic organic base,C9H7N,having a pungent tarlike odor,synthesized or obtained from coal tar,and used as a food preservative and in making antiseptics and dyes. 喹啉，氮（杂）萘一种芳香的有机碱，C9H7N，有一种刺鼻的类似焦油的气味，从煤油中提取或人工合成，用作食品防腐剂，并用在制造防腐剂和染料中。
- The sythesis of Monuron herbicide by oxidative-reductive carbonylation of dimethyamine and p-ClC6H4NO2 using selenium as catalyst and organic base as cocatalyst was studied. 研究了以硒为催化剂,有机胺为助催化剂,对氯硝基苯和二甲胺为反应底物,经高选择性氧化还原羰基化一步合成灭草隆除草剂。
- An aromatic organic base, C9H7N, having a pungent tarlike odor, synthesized or obtained from coal tar, and used as a food preservative and in making antiseptics and dyes. 喹啉，氮（杂）萘一种芳香的有机碱，C9H7N，有一种刺鼻的类似焦油的气味，从煤油中提取或人工合成，用作食品防腐剂，并用在制造防腐剂和染料中
- A series of unsymmetrical disubstituted ureas were prepared by reaction of trichloroac-etanilide to different amines in the presence of in organic base. 以无机碱作催化剂，用三氯乙酰苯胺与不同的胺反应，合成了8种不对称取代脲。
- Problems still remain, including the natural bumps and irregularities that come from using an organic base, said Dr. Dennis Prather, an associate professor of electrical and computer engineering. 然而电子计算机工程副教授丹尼斯·普拉瑟说，这种芯片还是存在一些问题的，例如使用有机材料会产生自然颠簸和不规则运动。
- Problems still remain,including the natural bumps and irregularities that come from using an organic base,said Dr. Dennis Prather,an associate professor of electrical and computer engineering. 然而电子计算机工程副教授丹尼斯·普拉瑟说，这种芯片还是存在一些问题的，例如使用有机材料会产生自然颠簸和不规则运动。
- A large citizens' organization based on kinship, constituting the largest political subdivision of an ancient Greek city-state. 宗族一种基于亲戚关系的巨大的市民组织，它组成了古希腊城邦的最大的政治分支
- The classification of organisms based on cellular structure and function, especially on the structure and number of chromosomes. 细胞分类学在细胞结构和功能基础上的，特别是在染色体的结构和数量上的微生物的分类
- Carbosilane dendrimer with allyl end groups is bonded to silicagel.Reactions between the dendrimers and acid-processed silicagel take place with toluene reflux and organic base as catalyst. 含有烯丙基末端基的第二代硅碳烷树枝状大分子与硅胶在甲苯回流及有机碱作酸吸收剂下进行反应。
- A. Melamine is an organic base with the chemical formula, composed of molding powder, cellulose pulp and other filler, is a hard, thermosetting plastic which is widely used in tableware. 所谓美耐皿，是一种有机化学物，由压型粉和其他填充料合成。是一种强性的，热硬化性的化学塑胶材料，广泛应用于餐具。
- Is it reliable to solve problems in a simple way on an organizational basis? 简单地从组织上解决问题是不是牢靠呢?
- Sodium tert-butoxide is an important organic base used for pesticide and pharmacology. This paper introduced its synthetic method, physico-chemical property and safeguard in the productive process. 本文介绍了叔丁醇钠的合成方法、理化性质以及安全保护应该注意的问题。
- The runner was retired put out at first base. 跑垒者于第一垒上被刺杀出局。
- The runner went to second base on a wild pitch. 一记瞎设让跑垒员跑上了第二垒。
