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- 与 obtain 相关的网络例句 [注:此内容来源于网络,仅供参考]
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METHODS Chlorodehydromethyltestosterone was synthesized from methyltestosterone by cycloxidization with hydrogen peroxide to obtain cycloproxene methyltestosterone, which subjected to chloridization with was hydrochloric acid in the presence of propanone to obtain chloromethyltestosterone, and then was subjected to dehydrogenation with DDQ using PTS as dehydrogenation catalyst in benzene.
以甲睾酮和H2O2环氧化反应得到环氧甲睾酮,再与盐酸在丙酮溶媒中进行氯化反应,得到氯甲睾酮,最后用2,3-二氯-5,6-二氰基对苯醌在PTS催化下脱氢得到脱氢氯甲睾酮。
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The resin is prepared by swelling chlorine balls in a solvent such as nitrobenzene; adding catalyst to obtain polystyrene-divinylbenzene adsorptive resin; removing reaction mother solution; washing to remove residual solvent and catalyst; swelling; adding pyrane reagent to further react with chloromethyl residual on inner and outer surfaces of the resin to obtain the pyranyl modified adsorptive resin with the composite function.
该树脂的制备方法:将氯球溶胀于硝基苯等溶剂中,加入催化剂,得到聚苯乙烯-二乙烯苯吸附树脂;抽尽反应母液,洗去残留的溶剂和催化剂;溶胀,加入吡喃试剂与树脂内外表面残留氯甲基进一步反应,可制得吡喃基修饰复合功能吸附树脂。
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Love, make the society go forward one big step, want ~only everyones all not so selfish, want to be also to offer some benevolence for the other people, so, even at dry of season, can also obtain storm sewage to moisten, even at cold of winter, also is feel obtain is bright with warm,the quare benevolence is the one sunlight, make individual, society, the world farewell shadow and chill, feel bright with warm.
爱,使社会前进一大步,只要人人都不那么自私,想想也为别人奉献一点爱心,那么,即使在干旱的季节,也能得到雨水的滋润,即使在寒冷的冬天,也是能感受得到光明和温暖、所以爱心是一片阳光,使个人,社会,世界告别黑暗和寒冷,感受光明和温暖。
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Using the discrete dynamical system determined by the stroboscopic map, we obtain an exact 1-periodic solution of the system which is with Ricker function and obtain the threshold conditions for its stability.
运用由频闪映射决定的离散动力系统,得到了具Ricker功能函数系统的精确1-周期解,并讨论了它在临界条件下的稳定性。
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The experimental results shows, if the ratio between MS-1 and OP-10 rangs from 1:1 to 3:l,and the total dosage of them is about 20% of Octamethylcyclotetrasiloxane (D4 ) in quality, we can obtain a kind of stable seeded emulsion of organic silicone modified acrylic ester emulsion. At the same time, if the ratio between MS-1 and Tetramethylammonium Chlorideis l:1.7,the total dosage is about 50% of D4 in quality; the ratio between MS-1 and Cetyltrimethylammonium Chlorineis 7:1, the total dosage is about 25% of D4 in quality,we can also obtain stable seeded emulsions. But if the complex emulsifier system is made of TMAC and OP-10, MS-1 and Peregal O or CTAC and Span-80, we can not synthesize any kind of satisfactory seeded emulsions.
实验结果表明:当MS-1与OP-10的质量比为1:1~3:1,总用量为八甲基环四硅氧烷(D_4)的20%左右时,可合成稳定性良好的硅丙种子乳液;MS-1与四甲基氯化铵的质量比为1:1.7,总用量为D_4的50%左右,MS-1与十六烷基三甲基氯化铵的质量比为7:1,总用量为D_4的25%左右时,亦能得到稳定的硅丙种子乳液;而TMAC与OP-10、MS-1与Peregal O以及CTAC与Span-80的复合体系作为乳化剂时均不能得到满意的硅丙种子乳液。
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Of personnel of unemployment of come off sentry duty again obtain employment problem, the Chongzhongzhi that is job of current obtain employment is heavy.
下岗失业人员的再就业问题,是当前就业工作的重中之重。
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The preparation method comprises the steps as follows: pulverizing; alkalizing and stewing plant straw to obtain fibrous pulp; mixing the fibrous pulp with bentonite and milling; conducting sodium treatment, chemical modification and purification to obtain modified composite bentonite pulp; separating, drying, etc., to prepare the composite fibrous material.
本发明涉及一种路用秸秆复合纤维材料的制备方法,该制备方法是将植物秸秆经过粉碎、碱化、蒸煮后的纤维浆与膨润土经过磨细、纳化、化学改性和提纯后得到的改性膨润土浆复合,并经分离、干燥等制备出的复合纤维材料。
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Faddish CEO Luo Jiangchun expresses, faddish can obtain license plate smoothly, make clear faddish be opposite the understanding of industrial policy and carry out, the approbating that content monitoring, system government, good enterprise society sense of responsibility and the job that the user learns to field place is done acquired director branch, obtain a card to will conduce to company future business right now more normative and reasonable spread out.
风行CEO罗江春表示,风行能顺利获得牌照,表明风行在对产业政策的理解与执行、内容监控、系统管理、良好的企业社会责任感和用户体验方面所做的工作获得了主管部门的认可,此时获牌将有助于公司未来业务更加规范合理的展开。
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Northeast area is put in grim obtain employment situation, solving obtain employment problem is the breach that revitalizes northeast.
东北地区存在严峻的就业形势,解决就业问题是振兴东北的突破口。
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The process includes the following steps: dissolving bromine in halogenated hydrocarbon, dropping the bromine solution into reactant system comprising pentabromo toluene, halogenated hydrocarbon, free radical initiator and hydrogen peroxide at 50-65 deg.c, and heating to 60-78 deg.c for reflux reaction until the reactant system becomes transparent; filtering the resultant to obtain solid product, washing with carbon tetrachloride and water separately and vacuum drying to obtain pentabromo benzyl bromide.
具体步骤为:将五溴甲苯、卤代烃、自由基引发剂和过氧化氢组成的反应体系加入到三颈瓶中,将0.07~0.1mol的溴溶于50ml卤代烃配成溶液,在50-65℃温度下滴加到反应体系中,滴加时间为50-70分钟,然后升温至60-78℃温度下回流反应,至反应体系逐渐变透明,且不再产生气泡时,将所得产物过滤,得到固体产物,分别用CCl 4 和水洗涤,真空干燥,即得到五溴苄基溴;其中,五溴甲苯与溴的摩尔比为1∶0.7-1∶1.0,溴与过氧化氢的摩尔比为1∶1.0-1∶1.4,自由基引发剂加入量为五溴甲苯重量的1-10%,卤代烃的加入量为反应体系体积的40%-100%,所用溶剂可以直接进行下一批反应,不需要更换溶剂或蒸馏提纯。
- 相关中文对照歌词
- Midnight Sky
- Reverence (Living In The Heart)
- Emulate
- Stomp (Remix)
- Game
- Power
- Here We Go
- Knowledge
- Action
- The Buffoon And The Valedictorian
- 推荐网络例句
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"Yes, now you can give yourself airs," she said, you have got what you wanted.
"对了,您现在高兴了,"她说道,这是您所期待的。
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Then the LORD said to me: Rebel Israel is inwardly more just than traitorous Judah.
上主于是对我说:"失节的以色列比失信的犹大,更显得正义。
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I do my best to guide my congregation,ok?
我尽了全力引导会众明白吗?