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By research on the concentration change and distribution of methyl bromide in the container, we found that in the first period of fumigating, the absorption of the goods to methyl bromide became quickly, so did the concentration decline of the fumigant because of leakage of the carton itself. The distribution of the fumigant is not uniform in the aclinic and vertical directions. The absorption of the goods to methyl bromide completed after 6 hours delivered the gasified fumigant and the distribution of the concentration in space got balance.

甲烷在集装箱内浓度的变化与分布规律进行研究,发现熏蒸开始阶段,货物对熏蒸剂的吸附及箱体渗漏使气体浓度下降较快,且在水平和垂直方向都存在分布不均匀的现象,气化投药后6小时,货物对甲烷的吸附已基本完成,浓度空间分布达到平衡。

Amino-6-methoxy Benzothiazole 99%、2-Amino Benzothiazole 99%、Veratraldehyde 99%、Veratric Acid 99%、1,2- Dimethoxy Benzene 99%、6-Nitroveratric Acid 97%、2,5-Dichlorobenzoic Acid 99%、4-Chloro-3-Nitrobenzoic Acid 99%、 3-Nitrobenzole Acid 98%、p-Methoxybenzoie Acid 99%、Anisole 99.5%、p-Methoxyacetophenonc 99%、(2'-Chloroethyl) Benzene 99%、(2'-Bromoethyl) Benzene 99%、N,N-Diethyi-m-Toiuamide 99%、Aminoacetonitrile Hydrochloride 98%、 Alkyl Diphenyl Phosphate Estrel 98%、5-Chloro-2-benzothiazolone 99%、6-bromo-2-naphthol 98%、6-Nitro-Veretric Acid Estrel 97%、4-chloro phenoxyaeetic 99

2-氨基-6-甲氧基苯骈噻唑、2-氨基苯骈噻唑、藜芦醛、藜芦酸、藜芦醚、6-硝基藜芦酸、2,5-二氯苯甲酸、3-硝基-4-氯苯甲酸、3-硝基苯甲酸、对甲氧基苯甲酸、苯甲醚、对甲氧基苯乙酮、β-氯代苯乙烷、β-代苯乙烷、N,N-二乙基间甲苯甲酰胺、氨基乙腈盐酸盐、磷酸二苯月桂酯、5-氯-2-苯骈噻唑酮、6--2-萘酚、6-硝基藜芦酸甲酯、4-氯苯氧乙酸

Bis-(4-bromobenzoyl) benzene as the monomer of poly was synthesized by Friedel-Crafts benzoylation reaction. Poly-Ⅱ synthesized via palladium-catalyzed aryl amination reaction using 1, 4-bis-(4-bromo-benzoyl) benzene and 4, 4'-diaminodiphenyl ether as monomers.

通过傅-克酰基化反应合成了1,4-双-(4'-苯酰基)苯,以1,4-双-(4'-苯酰基)苯和4'4-二氨基二苯醚为单体,通过钯催化的胺基化缩聚反应合成了高性能聚合物-聚亚胺酮-Ⅱ。

Bromination occur s selectively on the PMS methyl group, providing a reactive benzylic bromine functionality which is the key to Exxpro specialty elastomers′ vulcanization and modification versatility.

化反应选择性地发生在PMS的甲基基团上,提供活性苄基官能团,这也是Exxpro特种弹性体硫化和各种改性的关键。

Bromination occurs selectively on the PMS methyl group, providing a reactive benzylic bromine functionality which is the key to Exxpro specialty elastomers′ vulcanization and modification versatility.

化反应选择性地发生在PMS的甲基基团上,提供活性苄基官能团,这也是Exxpro特种弹性体硫化和各种改性的关键。

Bromate, perbromate, hypochlorite, perchlorate, ferrate,bismuthate, hydrogen peroxide, ozone, oxygen,hydroxyl radical, vanadate, ultraviolet light, bombcolorimetry, combinations of several oxidants andelectrochemical techniques. These approaches have notbeen suitable due to difficulties in reagent preparation,reagent stability, photosensitivity, low oxidationpotential, poor oxidation efficiency, expense, and userprotocols that proved too complex.

哈希实验室就试验过高锰酸盐,铈盐,过硫酸盐,过碘酸盐,碘酸盐,高铁酸盐,酸盐,过酸盐,过氧化氢,臭氧,氧,羟基,钒酸盐,紫外光,氧化弹,比色计,数种氧化剂与电化学技术的结合,这些方法已不适用,由于试剂难于制备,试剂稳定性,光敏感,低氧化电位,低氧化率,昂贵,用户证实太复杂方面的问题。

The reactivities of the phenyl boronic acids containing di-, tri-fluoro substituents with pyridyl bromide were investigated in different catalyst system.

利用钯催化的SUZUKI偶联反应,以氟取代的苯硼酸与2-吡啶为原料合成了系列新的邻吡啶芳香化合物,研究了二及三氟取代的苯硼酸与代吡啶在不同催化体系中的反应性质。

The absorption of dye such as methyl orange,methylene blue,crystal violet,bromcresol green and bromothymol blue is one of very important factors to result to resonance scattering peak and valley.

研究了酚兰、甲基橙、澳甲酚绿、甲酚紫、结晶紫等染料对金纳米粒子溶胶共振散射光谱的影响,发现不参与纳米反应的游离分子吸收是产生共振散射峰和共振散射谷的一个重要原因。

Bromcresol burple - hexadecyldimethyl benzyl ammonium bromide spectrophotometry was used in the determination of anion surface active agent in wastewater from lotion industry or sewage.

采用甲酚紫-十六烷基二甲基苄基化铵法测定洗涤剂工业的生产废水或生活污水中阴离子表面活性剂的含量。

A decatalytic spectrophotometric based on a copper catalyzed redox reaction between potassium peroxydisulfate and bromcresol purple has been developed for the determination of trace copper in the percent of sulfuric acid.

在酸性介质中,以K2S2O8为氧化剂,甲酚紫为指示物质,Cu强烈阻抑K2S2O8氧化甲酚紫褪色反应,褪色反应程度在一定范围内随Cu浓度增大而降低。

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推荐网络例句

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。

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。