分子式

Any of a series of univalent groups of the general formula CnH2n+1 derived from aliphatic hydrocarbons.

分子式为cnhn的一系列一价基，从脂肪族烃衍生而来。

Stylistically it adheres to provincialism, naturalism and vitalism.

因为犬儒主义是一种知识分子式的逃避和无奈的自我调侃。

The mdelecular formula, C6H14, does not show anything except the total number of carbo and hydrogen atoms.

分子式C6H14只用来表示碳原子和氢原子的总数。

In the final step of the synthetic pathway leading to cabergoline, an allylic acid intermediate of Formula is reacted with N-(3-dimethylaminopropyl)-N-ethyl carbodiimide to produce cabergoline, i.e.

在卡麦角林合成路径的最后一步，分子式中的一个烯丙酸基中间体同碳二亚胺耦联剂反应生成卡麦角林，如

These data were used to infer the molecular formula and the elemental compositions of all the fragmental ions through software interpretation and, by further applying fragmentation regularities of mass spectrometry, the majority of ions were fully assigned. A base peak at m/z 402 in the mass spectrum was found as the molecular ion. The fragments were created mainly from the fragmentations of the tetrahydrofuran rings and the hydroxyl group. The most fragment products contain the dimethoxy phenyl group.

利用这些数据通过软件导出了分子式和所有碎片离子的元素组成，由此进一步根据质谱裂解规律对石梓醇分子的电子轰击质谱的主要裂解碎片给出了完全的归属，质谱中发现基峰为分子离子峰(m/z402)，裂解碎片主要来自双骈四氢呋喃环的裂解和羟基引起的裂解，绝大部分裂解产物包含二甲氧基苯基基团。

First of all, it presents numerous links to some useful website around the world such as Phytochemical and Ethnobotanical Databases, Michael Tims' Medicinal Plant Database Page, etc. Then it introduces the courses which are divided into Introductory Botany, Phytochemicals, Formulations and Generally Recognized as Safe Botanicals and so on. It particularly introduces Chinese herb in its cources.

首先介绍了世界上众多有用网址的链接，如植物化学和民族植物学数据库、迈克尔·；提姆斯的药用植物数据库等，课程分为植物学引言、植物化学物质、分子式和经一般安全认证的植物产物等，其中还特别提到了中草药。

1680 The molecular formular of I was determined by molecular ion peak 484 in EIMS to be C^HioNA.

从EIMS给出分子离子峰为484，推导出单体I的分子式为C_(27)H_(40)N_4O_4。

Their general molecular formular is Na_2[I_4Mo_2WO_(24)]·10H_2O.

确定了其分子式为Na_2[I_4Mo_2WO_(24)]·10H_2O。

The preparation method comprises the steps as follows: houghite ZnAl-NO3-LDHs is taken as the precursor, ion exchange method is adopted to insert the 2- naphthylamine-1, 5-disulfonic acid to the interlayer of ZnAl-NO3-LDHs, thereby assembling and acquiring the ZnAl-NADA-LDHs of good crystalling phase structure and splendid performance.

超分子结构2-萘胺-1，5-二磺酸插层材料，简写为ZnAl-NADA-LDHs，其分子式为：[Zn 2 1-x Al 3 x 2 ](C 10 H 7 NO 6 S 2 ) 2- x/2 mH 2 O，是以水滑石ZnAl-NO 3 -LDHs为前体，采用离子交换法将2-萘胺-1，5-二磺酸插入到ZnAl-NO 3 -LDHs层间，组装得到晶相结构良好、性能优异的ZnAl-NADA-LDHs。

A salt or ester of hypochlorous acid.

乙硫磷一种剧毒的液态有机磷酸酯杀虫剂，分子式为

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。