查询词典 methyl bromide

Acriflavine, Ethidium Bromide, Methyl Viologen and Sodium Dodecyl Sulfate are found to be the inductors of AcrR.

实验筛选出Acriflavine、Ethidium Bromide、Methyl Viologen、Sodium Dodecyl Sulfate等四种AcrR诱导物。

They also pointed out that farmers throughout the world were already using innovative alternatives to methyl bromide.

他们同时也指出，全世界范围内的农民们已经使用改良过的甲基溴化物了。

The method of determination of methyl bromide in fumigation progress was developed by GC 5000 A.

探讨了气相色谱法测定熏蒸处理过程中溴甲烷浓度的检测方法。

Instead of phasing out methyl bromide in 2001, at that time, the use must be reduced by 50 percent of the 1991 level.

原定最后期限是2001年，现在规定到了那时，甲基溴化物的使用量必须减少到1991的50%的水平。

But the government restricts the use of methyl bromide , and countries have agreed to an international treaty to ban it.

但是政府限制了溴化甲烷的使用，许多国家也达成国际协定禁止使用它。

Research on methyl bromide alternatives is one of the hot issues in the area of current pest control. To study and develop new alternative fumigant, re-evaluate current fumigants are the focus of methyl bromide alternatives research.

溴甲烷替代研究是当前有害生物控制领域的热点问题之一，研究开发新的替代熏蒸剂，重新评估已有熏蒸剂，是溴甲烷替代研究工作的重点。

The reaction of methyl bromide with methylamine to give dimethylammonium bromide is a typical SN2 reaction that shows second-order kinetics.

答：甲基溴与甲胺反应得到二甲基溴胺是一个典型的SN2反应，是动力学二级反应。

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.

对溴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，货物对溴甲烷的吸附已基本完成，浓度空间分布达到平衡。

Comparing with the result of methyl iodide in intense laser field, some differences are observed:(1) at the same laser field intensity, the highest charged fragment ion of methyl bromide was Br(superscript 3+), lower than I(superscript 6+) of methyl iodide;(2) the dehydrogenation channel was observed in the multiphoton dissociation or Coulomb explosion of methyl bromide, but was not observed in the case of methyl iodide;(3) HBr(superscript +) was observed, but there was no similar channel in the case of methyl iodide;(4) for methyl bromide, the valid charge distance of Coulomb explosion increases with the product of p and q; while in the case of methyl iodide, the distance remained almost the same;(5) the producing channel of CH(superscript + subscript m)(m=0, 1, 2) is different from the ionization-dissociation of methyl iodide in which the stepwise dissociation of CH3(superscript +) was thought to be the main channel, CH(superscript + subscript m)(m=0, 1, 2) of methyl bromide are mainly from the products of the direct dissociation of the dehydrogenated parent ions instead of the stepwise dissociation of CH3(superscript +).

与碘甲烷在强场中的实验结果对比发现：(1)在相同的激光场强下，碘甲烷电离解离的最高价碎片离子为I(上标 6+)而溴甲烷为Br(上标 3+)；(2)溴甲烷质谱中存在母体离子的脱氢产物CHBr和CHBr(上标 2+)，而对于碘甲烷，没有检测到这些通道，C-I键首先断开；(3)质谱中存在H^79Br和H^81Br，而碘甲烷的电离解离中不存在HI产物；(4)溴甲烷库仑两体爆炸的有效电荷间距随着两碎片电荷乘积的增大而增大，而对于碘甲烷此间距几乎不随电荷乘积变化；(5)CH(m=0， 1， 2)的主要生成通道可能与碘甲烷不同，不是来自CH3的顺序脱氢，而是来自脱氢母体离子的直接解离。

Objective To confirm that volatile organic compounds monitor is much better than methyl bromide lamp in detecting residue concentration from methyl bromide.

摘要目的挥发性有机化合物检测仪定量检测溴甲烷余留残毒浓度的科学方法应用到船舶熏蒸处理的卫生安全工作的重要性和紧迫性。

I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像，后来回台湾，甚至去年在北京，居然也四处看见她的海报，才惊讶她的魅力之大。