合成物质

More than 30 kinds of genes related with biosynthesis of these volatiles have been cloned.

迄今为止，已经有30多种植物挥发性物质的合成酶基因被克隆。

He realized Cadmus had lined its entire complex with lead--the one substance his X-ray vision couldn't penetrate.

他意识到卡德摩斯之城完全是用铅的合成物--他的X射线视力不能透过的一种物质。

The results showed that new-type solid ferric potassium alum was a good catalyst for the synthesis of ethyl decanoate and the optimum conditions were as follows: molar ratio of acid to alcohol was 1∶2, the use level of catalyst was 0.6 g/0.05 mol capric acid, water-taking reagent benzene was...

结果表明，新型固体酸铁钾矾是合成癸酸乙酯的良好催化剂，在酸醇物质的量比为1∶2，催化剂用量为0.6g(0.05mol癸酸)，带水剂苯为15mL，反应时间为2.5h的条件下，癸酸乙酯的酯化率可达98%。

The results showed that new-type solid ferric potassium alum was a good catalyst for the synthesis of ethyl decanoate and the optimum conditions were as follows: molar ratio of acid to alcohol was 1:2, the use level of catalyst was 0.6g/0.05 mol capric acid, water-taking reagent benzene was 15 mL, reaction time was 2.5 h and the yield of ethyl decanoate could reach 98%.

结果表明，新型固体酸铁钾矾是合成葵酸乙酯的良好催化剂，在酸醇物质的量比为1：2，催化剂用量为0.69（0.05 mol癸酸），带水剂苯为15mL，反应时间为2.5h的条件下，癸酸乙酯的酯化率可达98%。

The influence of acrylic acid and cetane alcohol,amount of catalyst and inhibitor,reaction temperature,reaction time were investigated.

实验结果表明，合成的最佳反应条件为：丙烯酸与十六酯的物质的量之比为1.2∶1，对甲苯磺酸的用量为0.6%，对苯二酚的用量为0.4%，反应温度为110℃，反应时间为5 h。

The rules of breakage and formation of chemical bond in the reaction were discussed in order to help the further research in this field.

本论文的研究内容分两部分：第一部分是N3-和NCO-与COCl2的反应机理及反应过程中化学键变化的规律，找到了可能的反应通道，为合成高能量密度物质提供了新的可能的途径和方法。

The species of extracellular ATP can participate the effect of nerve system not only as the neurotransmitter and modulator but also has a trophic action to glial cell and neuron. It participates in many courses, e.g. cell differentiation and apoptosis, the morphologic change of chondriosome, to stimulate the synthesis and release of cytokine and nerve growth factor. It has a great influence to neurological growth and plasticity.

细胞外ATP类物质不仅可以作为神经递质及调质参与神经系统的功能，还可对胶质细胞及神经元产生营养作用，广泛参与细胞分化及凋亡、细胞线粒体形态变化、刺激细胞因子及神经生长因子的合成及释放等过程，对神经系统的发育及可塑性变化产生重要的影响。

A pigment consisting of organic coloring matter with an inorganic, usually metallic base or carrier, used in dyes, inks, and paints.

色淀一种由有机颜料物质同无机的通常是金属的底基或载体合成的色素沉淀，用于制作染料、墨水和油漆

"Food additive" means any synthetic compound or natural substance put into food to improve its quality, colour, fragrance or taste, or for the sake of preservation or processing.

食品添加剂：指为改善食品品质和色、香、味、，以及为防腐和加工工艺的需要而加入食品中的化学合成或者天然物质。

The dispersion medium used in the invention is water, but not organic solvent; the product obtained in synthesis reaction is innoxious water-based liquid, and has no secondary pollution after use. The invention has the advantages of simple production technology and convenient use.

本发明的消除有害挥发性物质的制剂使用的分散介质为水而不是有机溶剂，通过合成反应得到的产物为无毒水性液体，使用后不会产生二次污染，此外，本发明产品的生产工艺简单，而且使用方便。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失