分子式

Any of various isomeric paraffin hydrocarbons with the formula C 8 H 8, found in petroleum and used as a fuel and solvent.

辛烷：一种分子式为C 8 H 8的同分异构石蜡烃，在石油中发现，用作燃料和溶剂

In order to recover Mo and Cu,the acidic from the production process of molybdic ammonium was disposed by DK macropous cation exchange resin,AH compex resin and general cation exchange resin,respectively.Other heavy metals in wastewater were deposited by adding ammonia liquor in the proess.

钼酸铵[分子式为(NH4)2Mo4O13·2H2O或(NH4)6Mo7O24·4H2O]是石油化学工业和高分子合成工业催化剂、陶瓷彩釉和颜料、特殊分析试剂和药物以及生产金属钼丝、片等的重要原料[1]，工业上通常采用将精钼砂焙烧、硝酸浸洗、氨水浸出、净化和加酸沉淀等一系列工艺流程。

Form PLA is a nonvirulent macromolecular compound with biocompatibility, which used in the manufacture of new biodegradable plastics, fiber, and biomedical material.

型乳酸，分子式C3H6O3，为含有氢氧基的有机酸，是生物的代谢中间产物。L型乳酸可以在动物和人类细胞中新陈代谢因为这些细胞含有L型乳酸去氢酵素。L型乳酸还可用於生产L型乳酸聚合物。L型乳酸聚合物属於无毒的高分子化合物，具有生物相容性，可用於制造生物可分解的塑胶、纤维以及生医材料等。

The use of the molecular formula for the active ingredient named in defining the required strength of a Pharmacopeial article is intended to designate the chemical entity or entities, as given in the complete chemical name of the article, having absolute (100 percent) purity.

用于表示化学实体或实体的活性成分分子式的使用，当给出物质的完整的化学名称，具有绝对（100%）的纯度。

Synthesis experiments of butyl acetate were done with ammonium ferric hydrogen phos- phate as catalyzer.

以硫酸亚铁和磷酸二氢铵为原料，以聚乙二醇-400（PEG-400）为表面活性剂，经低热固相反应合成得到磷酸氢铁铵，经XRD分析表征证实了产物的分子式为（NH4）Fe（HPO4）2。

The reactions of pyridine-2-carbaldehyde semicarbazone with transition metal Ni(II,Cosalts afford two pyridine-2-carbaldehyde semicarbazone transition metal compounds.

配合物[CoL2]·(ClO4)2·H2O(3)，分子式C14H18Cl2CoN8O11，Mr=604.19，属三斜晶系，空间群P-1，晶胞参数：a=9.984(3) A， b=11.082(4) A， c=12.196(5) A ，Dc=1.769Mg/m3，α=112.954(4)°，β=110.050(4)°，γ=94.017(3)°，V=1134.4(7) A3， Z=2，μ=1.067mm-1， F(000)=614，结构偏离因子R=0.0501 和ωR=0.1028，配合物(3)的中心金属离子采取六配位的变形八面体。

Except for the good spumescence and decontamination, it possesses the bioactivity of antigen and antitch. First of all, the high resolution mass information was obtained by ESI-QTOF. Hence the possible molecular formulars were acquired too. Then we conducted the further detection of the structures of its saponins by using ESI-IT technology.

中的皂苷成分，由ESI-QTOF得到各个皂苷成份的高分辨质量数据进而得到其分子式，然后利用ESI-IT电喷雾串联质谱对无患子总皂苷中各皂苷成分的结构进行进一步的鉴定。

MgO nanowires were synthesized at a lower temperature (600℃) by pulsed liquid injection MOCVD with β–diketonate Mg2 magnesium bis (2,2,6,6–tetramethyl- 3,5-heptanedionate, with formula Mg(C11H19O2)2 as precursor.

使用脉冲液滴注入式MOCVD，将Mg2（即：双（2，2，6，6，-四甲基-3，5-庚二酮酸）镁，其分子式是Mg(C11H19O2)2 ）作为反应前驱体，在较低温度下（600℃）合成MgO纳米线。

A substance has a particular formula is due to the fact that the molecule with this formula is most stable thermodynamically.

P36 一个物质有特定的分子式是因为这一分子热力学上最稳定。

The form of the former form ula is formally formulated.

前一个分子式的形式得到正式表述。

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。