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The method is realized by that polyether ether ketone is added into concentrated sulfuric acid to carry out sulfonation reaction, thereby obtaining sulfonated polyether ether ketone, then the sulfonated polyether ether ketone is dissolved in organic solvent, N, N (1)-Carbonyldiimidazole is added to stir for one to three hours, coupling agent is mixed for stirring the reaction for 1.5 to 4 hours, then inorganic crosslinking agent is mixed to react under the temperature of 50 to 80 DEG C. Proton conductors are mixed to continue getting the mixed solution of the sulfonated polyether ether ketone or the inorganic crosslinking agent or proton conductors under the temperature. Finally the proton exchange membrane for a direct methanol fuel cell is obtained by that the mixed solution of the sulfonated polyether ether ketone or the inorganic crosslinking agent or proton conductors is/are processed through membrane forming, drying and exuviation.

该方法首先将聚醚醚酮加入浓硫酸中进行磺化反应得到磺化聚醚醚酮；然后将磺化聚醚醚酮溶于有机溶剂中，加入N，N′-羰基二咪唑搅拌1～3小时后加入偶联剂搅拌反应1.5～4小时，再加入无机交联剂在50～80℃下反应，然后加入质子导体继续在此温度下反应得到磺化聚醚醚酮/无机交联剂/质子导体的混合溶液；最后将磺化聚醚醚酮/无机交联剂/质子导体的混合物溶液成膜，干燥，脱膜即得到所述的直接甲醇燃料电池用质子交换膜。

With eyebrow pencil stains can be used when gas dissolved, reoccupy contains ammonia removal of soap to wash.

衣服上有眉笔渍时可用汽油溶解，再用含有氨水的皂液来洗刷去除。

Eyebrow pencil stains With eyebrow pencil stains can be used when gas dissolved, reoccupy contains ammonia removal of soap to wash.

衣服上有眉笔渍时可用汽油溶解，再用含有氨水的皂液来洗刷去除。

The results showed that the concentration of dissolved organic carbon in leachate from fresh litter fall was lower and that from F layer was higher for both plantations. In Castanopsis plantation, DOC concentration declined with the increasing number of leaching times, whereas that in China fir plantation increased at first then decreased.

光谱特征。结果表明，格氏栲和杉木人工林新近凋落物淋出液的DOC浓度较低，F层淋出液的DOC浓度较高；格氏栲凋落物淋出液的DOC浓度基本上随淋溶次数的增加而降低，杉木的则先升后降。

In the end false pride is humbled and 前一单元judice dissolved.

在完假谦卑的骄傲，是前一单元和审理终结。

The main cause of such phenomena is that feldspar solution provided sources for the deposition of anhydrites in dissolved pores.

造成这种现象的主要原因是储层中长石矿物的溶解为硬石膏在孔隙中的沉淀提供了物质来源。

And by batch cultivation in fermenter, the optimal dissolved oxygen in fermentation solution was found to be 40%.

通过发酵罐中重组菌的分批培养，确定了培养液中的最佳溶氧量为40%。

During the fermentation process, pH and dissolved oxygen concentration have been recorded automatically by fermentor.

同时，发酵罐自动记录了发酵过程中pH值和溶氧的动态变化。

During the fermentation process, pH and dissolved oxygen concentration had been recorded automatically by fermentor.

同时，发酵罐自动记录了发酵过程中pH值和溶氧的动态变化。

After the ferromolybdenum was dissolved completely in nitric acid at low temperature,adding internal standard elements of ~(45)Sc,by use of internal elements calibrated method,the content of Sb,Cu,Sn,Si and P in ferromolybdenum is determined directly by ICP-MS.

将钼铁样品用HNO3低温溶解完全后，加入内标元素45Sc，采用内标法，用ICP-MS仪进行测定。文中讨论了基体钼对测定的影响。本方法的加标回收率为98.0%~102.5%，相对标准偏差RSD为1.6%~3.5%。本方法具有简便、快速、准确等特点，可用于钼铁样品中微量杂质元素的分析

Who? I never heard of him, Paul said, before asking teammate James Posey if he had heard of him.

赛后，科比说，他一直都是一名非常出色的射手，今天他打得很棒。

When I joined the company, I rotated around the different sections.

我加入这个公司时，轮换过几个不同的部门。