溴
- 与 溴 相关的网络例句 [注:此内容来源于网络,仅供参考]
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All companies in Thailand in early 2002 that a 'high-tech world, as China's first China Aerospace Group / Houston hospital / yellow rope lead the entire group radiation center Thai Plant, in full production, pyrocondensation Casing has approved UL / cUL International Security Certification, the industry took the lead at home and abroad by SGS comprehensive test: lead Pb, Cd Cd, mercury Hg, hexavalent chromium Cr, PBB PBBS, PBBs ether PBDES.
全泰公司于2002年初在著称'世界高科技、中国第一照的中国航天集团/中国火箭院/中国黄缆集团辐照中心筹建全泰二厂,已全面投产,热缩套管已通过UL/cUL国际安规认证,国内外同行业率先全面通过SGS测试:铅Pb、镉Cd、汞Hg、六价铬Cr、多溴联苯PBBS、多溴联苯醚PBDES。
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In our work, as a preliminary experiment, the N-phenacylisoquinolinium bromide was reacted with methlhydrazine in refluxed acetic acid. Unexpectedly, 2-methyl-1,2,3-triazole was obtained. The further study of this reaction led to a more simple starting material,α-bromoacetophenone to react with methylhydrazine, obtaining the same product.
我们在研究N-苯乙酰异喹啉溴化物与甲肼在冰醋酸中的反应时,意外地得到了2-甲基-4-苯基-1,2,3-三氮唑,经过进一步的研究发现α-溴代苯乙酮与甲肼也能得到同样的产物。
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After 12weeks, RGCs were retrogradely labeled with fluorogold and RGC density was analyzed.
然后I组给予PBS, II组腹腔内注射溴莫尼定, III组局部应用拉坦前列腺素,IV组联合应用拉坦前列腺素和溴莫尼定。
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It is necessary to carry out a thorough study on pest control technology with DMDS, with an expectation of obtaining a new fumigant of methyl bromide alternative.2. Investigation of the toxicity of fumigation on adult and mixed stages of the three most tolerant insect species -- Sitophilus oryzae, Rhyzopertha dominica and Tribolium castaneum -- under a range of EtF、DMS and DMDS doses in a Flow-through Fumigation System shows that the FTFS procedure offers a constant concentration of fumigant with low CO2 concentrations and ensures that the fumigant toxicity is effectively not compromised by CO2. In comparison with chamber fumigation method, the toxicity data of EtF、DMS and DMDS obtained from this experiment is more accurate by using FTFS.
主要研究结果如下:1、甲酸乙酯和二甲基二硫对仓储害虫具有良好的控制作用,应加快甲酸乙酯替代溴甲烷防治仓储害虫开发应用,同时,二甲基二硫是很有潜力的仓储害虫防治熏蒸剂,要深入进行二甲基二硫控制有害生物的技术研究,以期获得新的溴甲烷替代熏蒸剂。2、利用循环熏蒸系统测定了甲酸乙酯、二甲基二硫和甲硫醚对米象Sitophilus oryzaeL。
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The complex preservative for citrus containing dibromohydantoin or bromochlorohydantoin as the antiseptic,stearyl monoglyceride as coating agent and Tween -80 as the dispersant agent was developed.
以二溴海因或溴氯海因为杀菌剂、硬脂酸单甘酯和吐温80乳液为涂膜剂和分散剂制备的复合保鲜剂,用于蜜桔杀菌保鲜实验,研究了贮存保鲜条件、保鲜过程中营养成分变化,讨论了复合保鲜剂的稳定性。
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AACC 48-42 is of high accuracy,good repetition,and is little influenced by additives of CaCO3,basic MgCO3,Benzoyl Peroxide,and sodium formaldehyde sulfoxylate...
经AACC48-42法检测我国市场上1748个小麦粉溴酸钾的添加现状,发现我国市场上不同类型的小麦粉中溴酸钾平均检出率为7.04%。
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It is found that when the molar ratio of sulphoxide,pyridine and acetyl bromide is 1∶0.6∶0.4,the catalytic effect on the ring-enlargment is the best,and the yield and purity of the final product can reach 76% and 97% respectively at a pH of 1.8 in toluene under refluxing for about 3.5h.
通过正交实验可得出以下结论:当N,N′-双脲-亚砜为2.5∶1,乙酰溴-亚砜为0.4∶1,吡啶-乙酰溴为1.5∶1,回流时间为3.5h,酸化pH值为1.8时,扩环反应结果最好,总收率可达76%,纯度97%以上。
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In the presence of the phase transfer catalysts such as tetramethylammonium bromide, tetraethylammonium bromide or polyethylene glycol(MW 400 and 6,000),lithium hydroxide is the best alkali among lithium hydroxide ,sodium hydroxide and potassium hydroxide.
研究表明在溴化四甲基铵、溴化四乙基铵、聚乙二醇(分子量为6,000)和聚乙二醇(分子量为400)相转移催化体系中,氢氧化锂最好,氢氧化钾次之,氢氧化钠最次。
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A novel method for synthesizing a series of tribromomethylarenes by halogen exchanging of trichloromethylarenes with boron tribromide was reported.
报道了一种以三氯甲基芳烃与三溴化硼反应制备系列三溴甲基芳烃的新方法。
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For example, alpha -chloronaphthalene is a suitable solvent for reaction between phthalonitrile and gallium triiodide or tribromide to provide iodogallium phthalocyanine or bromogallium phthalocyanine.
例如,α-氯萘为用于邻苯二甲腈和三碘化镓或三溴化镓之间的反应以得到碘镓酞菁或溴镓酞菁的适宜溶剂。
- 推荐网络例句
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We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.
索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称;三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起,称之为挽歌体诗人或者史诗诗人,他们被称为诗人,似乎只是因为遵守格律写作,而非他们作品的模仿本质。
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The relationship between communicative competence and grammar teaching should be that of the ends and the means.
交际能力和语法的关系应该是目标与途径的关系。
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This is not paper type of business,it's people business,with such huge money involved.
这不是纸上谈兵式的交易,这是人与人的业务,而且涉及金额巨大。