The raw materials used in the production of perfluoropolyethers are a mineral ( fluorspar ) and methane.

How many hydrogen atoms are present in 16 grams of methane?

十六克甲烷中有多少氢原子?

Pictured above is an image of Mars superposed with a map of the recent methane detection.

上图是火星甲烷分布图与火星地图的叠加结果.

The research tar surface active spot is studies the tar and the methane action mechanism foundation.

研究煤焦表面的活性位点是研究煤焦与甲烷作用机理的基础.

Methods: The 5 F was extracted by methanol and determined by HPLC.

方法用甲醇加热回流提取,反相高效液相色谱法定量分析.

Very simple really , use soap and water or methanol . DO NOT USE PETROL.

可以使用肥皂水,木精千万不可使用石油机溶剂.

A method for preparing dimethyl phosphite was developed from methanol and phosphorous trichloride.

研究了用三氯化磷和甲醇合成亚磷酸二甲酯的方法.

Quantum chemistry method is used to study the reactivity of the methanol dehydration.

用量子化学方法,研究甲醇脱水的反应性.

The anodic electrocatalysts for methanol oxidation were the key in direct methanol fuel cells.

甲醇阳极电催化剂是影响直接甲醇燃料电池性能的关键技术之一.

An intelligent control method for operation of methanol refining column was discussed.

讨论用于甲醇生产主精馏塔改进工艺条件下的智能控制方法.

The GNFs show excellent electrocatalytic activity toward the oxidation of methanol and the reduction of oxygen.

在甲醇的氧化和氧气的还原反应中,金纳米花显示出优良的电催化活性.

A description is made of the configuration, characteristics and operation of an axial radial methanol reactor.

介绍了轴径向甲醇合成塔的结构 、 特点及运行情况.

Either methanol or other suitable solvent, as ethylene glycol monomethyl ether, may be as the diluent.

可能是甲醇或者其他合适的溶剂, 例如二乙醇甲醚, 可以用做稀释剂.

It is to evaluate the uncertainty in measurement of methanol concentration in distilled liquor.

评定蒸馏酒中甲醇浓度的不确定度.

He was drunk; he seemed excited and tired, as if he had just come down off methedrine.

他喝醉了, 似乎很激动.疲惫不堪, 像是刚从服了脱氧麻黄硷后引起的幻觉中苏醒过来.

Anonymous : Revised guidelines for the control of methicillin-resistance Staphylococcus aureus infection in hospitals . J Hosp Infect 1998 ; 39:253-90 .

陈依雯,张静美,严小燕等:某医学中心各加护中心院内感染金黄色葡萄球菌之调查. 感控杂志1999; 9:245-53.

Iago . What an eye she has! methinks It'sounds a parley of provocation.

伊阿古她的眼睛多麽迷人! 简直在向人挑战.

Methinks, gentlemen, we need inquire no further. "

依我看, 诸位先生, 我们无需再问了. ”

Methinks he is not mistaken.

据我看来他没有弄错。

Methinks, it is wrong.

据我看来, 这是错的.

Methinks thou art too late!

我认为你来得太迟了!