化学合成

These results indicated that the presented method could be applied efficiently to the solution-phase combinatorial chemistry based on Williamson etherification.

结果表明该方法可高效率地用于基于Williamson醚化反应的液相组合化学合成。

Formic acid, lactic acid, acetic acid, oxalic acid, menthol, thymol, eucalyptol or camphor are used preferably to chemically synthetised products in cases of infestation with Varroa jacobsoni.

万一受到蜂螨群袭，蚁酸、乳酸、醋酸、草酸、薄荷醇、麝香草酚、桉油精或樟脑的使用优先于化学合成的药品。

So C. cathayensis exocarp could be used to synthesize potassium pyrophosphate. Some technical conditions of preparing pyrophosphate potassium were studied by chemical synthesis method.

以山核桃外果皮消化后的灰分为原料，采用化学合成法对制备焦磷酸钾的工艺条件进行了研究。

The billions of tons of synthetic chemicals that have been heedlessly released into the environment have not only damaged the ecosystem and wildlife, but have also affected human endocrine systems, damaged infants in the womb, and reduced sperm counts.

数十亿吨的化学合成剂不计后果地进入了我们的环境里，不仅破坏了生态系统和野生动植物，而且影响人类内分泌系统，伤害母亲体内的胎儿，减少男人精子的数量。

Drug, some can be natural to acquire, if opium be the fruit of 罂粟 which passes to incise immaturity but withdraw directly of a kind of natural ware, but the method that can synthesize through a chemistry of overwhelming majority drug obtain.

毒品，有些是可以天然获得的，如鸦片就是通过切割未成熟的罂粟果而直接提取的一种天然制品，但绝大部分毒品只能通过化学合成的方法取得。

The goal of this dissertation is to explore the chemical synthesis and properties of inorganic materials and their nanostructures.

本论文在综合考虑这三方面的基础上，旨在探索一些无机材料及其纳米结构的化学合成与性质。

This experiment include the chemical synthetic modification of larch extract tannin and the measure of its water treatment properties.

实验分为落叶松单宁的化学合成改性和其水处理性能的检测两大部分。

This thesis summarized the recent research of lycopodium alkaloids, including the structures of those new alkaloids, studies of the interaction between acetylcholinesterase and its inhibitors by NMR, and the synthesis of lycopodium alkaloids.

本篇论文对近年石松生物碱的研究进行了总结，内容包括新报道的石松生物碱结构，利用核磁共振方法研究乙酰胆碱酯酶与其抑制剂的结合，以及石松生物碱的化学合成研究。

Objective To observe the effects of achemically synthesized tetrose and anatural yeast mannan on mouse melanoma experimental liver metastasis.

观察自行设计并化学合成的四糖及天然存在的酵母甘露聚糖对小鼠黑色素瘤实验性肝转移的影响。

Topical treatment for new premises means a lot of toxic gases, but the current market sales of synthetic chemical sprays are generally used method is the elimination of formaldehyde and other poisonous gases and produce secondary pollution.

时下对新房有毒气体的治理手段不少，但目前市场上销售的气雾剂一般都是采用化学合成的方法，难免在消除甲醛等有毒有害气体的同时产生二次污染。

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