一溴化物

Summary Amounts of air pollutants, such as chlorofluorocarbons, nitrous oxides, methyl bromide and methane, were produced by industrial an...

人类活动和工业生产产生了很多污染物，诸如氯氟烃、氮氧化物、甲基溴化物和甲烷等，其中一氧化氮也是污染物之一。

In this double-blind trial at the University Hospital in Bern, Switzerland, 553 patients enrolled after successful angioplasty of at least one significant coronary stenosis of at least 50% were randomized to treatment with a combination of folic acid (1 mg/d), vitamin B12 (cyanocobalamin, 400 g/d), and vitamin B6 (pyridoxine hydrochloride, 10 mg/d), or with placebo for six months.

瑞士伯恩市大学医院所进行的双盲试验，共有553名患者，其至少有一条冠状动脉狭窄超过50％，并经过成功的血管重建术，这些患者被随机分配接受叶酸(1 mg/d)、维生素B12 (氰钴维生素， 400 Ig/d)联合治疗和维生素B6 (维生素B6 的氢溴化物， 10 mg/d)治疗，或安慰剂治疗，时间是6个月。

It's impossible to look upon those computer-generated photographs of our bromidic universe and not think how much we look like a glass of Alka-Seltzer.

瞧着电脑生成的我们这个溴化物宇宙的照片却不去考虑我们看上去多么像一杯阿司匹林复方制剂是不可能的。

Long-chain branched polyethylene was obtained using a homogeneous bianary catalyst system composed of late and early transition metal complexes,namely a mixture of bis(α-naphthalidine)-2,3-butanediimine NiBr2 and Cp* TiCl3,as catalyst precursors in the presence of MAO.

合成了一种后过渡金属镍化合物 [二- N ，N′--2 ，3-丁二亚胺镍二溴化物 ][C10H7—NC(CH3)C(CH3)N—C10H7]NiBr2，此化合物在MAO活化下催化乙烯聚合能得到含有末端双键的低分子量聚乙烯，即长链α-烯烃。

Fourthly, The preparation of 1 -triazolyl-2-isoxazolinyl substituted-ethenes was developed through an one-pot 1, 3-dipolar cycloaddition of NaN_3 and RI,α-alkylation reaction of substituted allyl bromides and 1, 3-dipolar cycloaddition of nitrile oxidesbased on polystyrene-supported propargyl selenide.

四、从聚苯乙烯负载的炔丙基硒醚出发，通过与叠氮化钠和碘化物的一锅法1，3-偶极环加成反应、取代烯丙基溴的α-烷基化反应和腈氧化物的1，3-偶极环加成反应固相合成了1—三唑—2—异噁唑啉取代的-乙烯。

Methods IO(superscript - subscript 3) was prepared by quantitative oxidation of bromine water, with the excessive bromine removed with formic acid. In the presence of excessive iodide, I(superscript -) would be oxidized by I(superscript - subscript 3) to form 3 times of I(superscript - subscript 3) in mol, displaying maximal absorption at 286nm in ultraviolet zone and a slightly low apex at 345nm.ε286=1.3×10^5 Lmol^(-1)cm^(-1),ε345=8.1×10^4 Lmol^(-1)cm^(-1), with both showing high sensitivity.

利用溴水定量氧化I生成IO(上标-下标 3)，再用甲酸除去过量的溴，IO(上标-下标 3)在过量碘化物存在下氧化I产生3倍摩尔量的I(上标-下标 3)，在紫外光区的286nm具有最大吸收，并在345nm处另有一略低的吸收峰，ε286=1.3×10^5 Lmol^(-1)cm^(-1)，ε345=8.1×10^4 Lmol^(-1)cm^(-1)，均具有很高的灵敏度。

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。

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。