甲烷

Dissolve the entire dry acetylation product in a minimum of methylene chloride in an Erlenmeyer flask.

用少量的二氯甲烷，把全部乾的乙醯化产物溶解在锥形瓶中。

You can be sure if Hamamatsu is selling a "methane" LED, someone is using it for a CH4 instrument.

你可以确认一下是否Hamamatsu 正在卖一种叫甲烷发光二极管的产品，有人将它用在CH4 设备上面。

In this study, Japanese cedar, Ma bamboo and Makino bamboo were liquefied in polyethylene glycol/glycerol co-solvent with H2SO4 or HCl as catalyst. The liquefied woody materials were blended with PMDI (4,4'-Diphenylmethane diisocyanate;MDI) to prepare the PU foams. The effects of preparation conditions of PU resin on the properties of PU foams were investigated.

中文摘要本研究将柳杉(Cryptomeria japonica； Japanese cedar)、麻竹(Dendrocalamus latiflorus； Ma bamboo)及桂竹(Phyllostachys makinoi； Makino bamboo)等木质材料以聚乙二醇及丙三醇之混合液为溶剂，H2SO4及HCl为催化剂进行液化处理，并将其液化木质材料与4，4'-二苯甲烷二异氰酸酯反应制造聚胺基甲酸酯发泡体，探讨PU树脂调配条件对PU发泡体性质之影响。

In Kemerovo, in Central Siberia, the search is still on for three coal miners missing following Monday's methane gas explosion that killed at least 107 people.

在西伯利亚中部的克麦罗沃地区，救援人员继续搜寻星期一甲烷气体爆炸后下落不明的 3 名矿工。这次矿难造成至少 107 人丧生。

In Kemerovo, in Central Siberia, the search is still on for three coal miners missing following Monday's methane gas explosion that killed at least 107 people.

在西伯利亚中部的克麦罗沃地区，救援人员继续搜寻星期一甲烷气体爆炸后下落不明的3名矿工。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。