1.Six series of aryloxy pyridazines derivatives have been synthesized starting from 3,6 dichloro pyradizine.

1.以3,6-哒嗪为原料,合成了6类芳氧基哒嗪类衍生物,研了它们的合成方法,并测定了所得产物的除草活性。

2.French is a derivative of Latin.

2.法语起源于拉丁文。

3.Why are the lupanine derivatives bitter ?

3.为什么白金雀儿碱的派生物是苦的？

4.Twelve different thioxanthone carboxylic amides derivatives are prepared.

4.合成了十种噻吨酮酰胺类光引发剂。

5.Darwin's work is derivative of the moral philosophers.

5.达尔文的工作受到伦理学家的影响。

6.Settlement of a derivative instrument with physical delivery of an underlier.

6.是指采取实物交付衍生证券标的物的结算方式。

7.He had “derivative citizenship” from his father’s naturalisation around 1990.

7.由于他父亲于1990前后入了籍，他也承袭了公民权。

8.Syhthesis of novel derivatives of Naphtol AS and modification used for C.I.

8.Pigment Red 57: 1 (新的色酚AS衍生物的合成及对C.

9.Neotame (NTM), a derivative of aspartame, is a new nonnutritive and high-potency sweetener.

9.纽甜作为一种新型功能性食品甜味剂,在食品工业中有着广泛的应用。

10.The spectra and photophysics of 2-aryl-benzoxazole derivatives have been studied in this work.

10.对2-芳基苯并唑衍生物的光谱及光物理行为进行了研。

11.FMN (flavin mononucleotide) A derivative of riboflavin that is a coenzyme in electron-transfer reactions.

11.黄素单核苷酸（FMN）：核黄素的衍生物，在电子传递反应中是一种辅酶，作为多种脱氢酶的辅助因子起作用。

12.Both research groups conclude that helicase-primase inhibitors are more potent than acyclovir and its derivatives.

12.无论研断定旋-引抑制剂更烈性比阿昔洛韦及其衍生物.

13.Three novel malononitrile derivatives have been synthesized by the solid state reaction at room temperature.

13.固相反应合成了新型丙腈类化合物。

14.Aryl substituted polyacetylenes and their derivatives exhibit a lot of novel optical, electric, magnetic properties.

14.芳基取代聚炔及其衍生物呈现出光电磁等许多新颖的性能。

15.The key step of the synthesis of chroman derivatives is to construct chiral chroman ring.

15.合成色满衍生物的关键是构建含有手性中心的色满环。

16.General approaches involve the nucleophilic cycloalkylation, carbenoids addition of certain amino acid derivatives and derivatization from simple cyclopropane compounds.

16.制备方法包括对简单氨基酸衍生物的亲核环烷基化、类卡宾加成以及简单环丙烷化合物的衍生化合成等。

17.Another reported Chromene derivatives can strongly inhibit tubulin aggregation and play an efficient role against cancer.

17.另外有报道色烯类衍生物可以强烈的抑制微管蛋白聚合，从而发挥抗癌作用。

18.Gravity gradient is the second order derivative of gravitational potential, which can be observed by satellite gradiometer.

18.摘要重力梯度为重力位的阶导数，可以通过星载梯度仪进行观测。

19.Herein we review the chemical studies on sphingosine and related lipid derivatives,with focus on their chemical synthesis.

19.本文主要综述了鞘氨醇等衍生脂质的化学研,特别是它们的化学合成进展。

20.Stereoselective oxidative dimerization of the enolate of carboxylic acid derivatives is summarized focusing on the stereoselectivity of the process.

20.综述羧酸衍生物的烯醇盐氧化聚成键的规律,重点是立体选择性的过程。