查询词典 bromide

The reactions of propargyl bromide/sodium iodide and aldehydes and ketones promoted by metallic dysprosium could obtain homopropargyl alcohols in high yield.

炔丙基溴/碘化钠与醛、酮在金属镝促进下可较高产率地得到高炔丙醇化合物。

The interactions of gels with sodium dodecyl sulfate and cetyltrimethyl ammonium bromide were also studied.

此外，研究了凝胶与十二烷基磺酸钠和十六烷基三甲基溴化铵的相互作用。

Objective: To establish a new method for quantitative detection of inorganic anion in water including fluoride, chlorite, bromate, chloride, nitrite, bromide, sulfuret, chlorate, sulfite, nitrate, phosphate, sulfate. Methods: Ion chromatography was applied.

目的：建立能同时测定生活饮用水中F、ClO2、BrO3、Cl、NO2、Br、S(上标 2-)、ClO3、SO(上标 2-下标 3)、NO3、PO(上标 3-下标 4)、SO(上标 2-下标 4)等12种无机阴离子的方法。

Ambient conditions that include toxic gases such as hydrogen sulfide, sulfurous acid, nitrous acid, chlorine, bromine, methyl bromide, ammonium, etc.

b 周围环境中有氢化硫、亚硫酸、亚硝酸、氯气、溴气、溴化甲烷、氨气等有毒气体。

Phosphine generally require long exposure periods, whereas methyl bromide and sulfuryl fluoride provide a rapid fumigation that can be completed in less than 4 days, often within 24 hours.

磷化氢一般需要较长的密闭时间，而溴甲烷和硫酰氟则适合快速熏蒸，可在不到4天之内完成熏蒸工作，一般在24小时内完成。

On the basis of existing international achievements in the development of methyl bromide alternatives,the author suggested that the practicability of sulfuryl fluoride,ethyl formate,propylene oxide,and carbonyl sulfide in China be approached and considered that sufuryl fluoride is most promising.

遗憾的是，它也和许多已被人类淘汰的其它熏蒸剂一样，由于它属于消耗大气臭氧层的物质[1]，为了保护人类子孙万代良好的生活环境，已经在国际上取得共识，把它列为逐步淘汰的物质[2]，而且已于1979年开始采取了具体的法规性行动[3][4]。

SURFACTANTS: Thonzonium bromide is a surface-active agent that promotes tissue contact by dispersion and penetration of the cellular debris and exudate.

Thonzonium甲基溴是一种表面活性剂，促进组织联系的分散和渗透力的细胞碎片和渗出液。

Objective To compare the bronchodilating effects of ipratropium bromide and theophylline in chronic obstructive pulmonary disease.

目的 比较定量雾化吸入溴化异丙托品与口服氨茶碱片对支气管扩张的作用。

The lunate channel tube has been successfully used as thermosiphon solution elevation tubes that is the key component in lithium-bromide absorption refrigeration system without solution pump firstly.

本文搭建了一个太阳能热水型空调系统，在实验中，用电加热得到的热水来模拟太阳能集热器产生的热水，驱动溴化锂水溶液吸收式小型家用空调系统。

Compound 9 is glycosylated in the presence of TMSOTf with rhamose-derived trichloroacetimidates to provide target trisaccharide Saponin 1, oleanolic acid 3-yl-2,4-di-O-a-L-rhamnopyranosyl -p-D-glucopyranosideCoumpond 18 is prepared with oleanic acid and Bromide 11 through phase-thansfer catalysis glycosylation manner.

三糖皂苷Saponin 1是以葡萄糖齐墩果酸皂苷为起始原料，用BBTZ(1-苯甲酰苯并噻唑)选择性保护葡萄糖3′，6′-羟基得到化合物9，然后以化合物9为糖基受体，进行一步糖苷化可以在化合物9的2′，4′-羟基上同时引入两分子鼠李糖，最后脱掉所有的保护基得到目标化合物Saponin1。

We are forbidden from giving money to these shoeless, skinny children, as this will perpetuate begging.

向光着脚，骨瘦如柴的孩子施舍是不可以的，因为要招来无休无止的乞讨。

It would be hard not to fall victim to some sharpeyed policeman.

要想不被某个目光锐利的警察抓到，谈何容易。