查询词典 para-amino-benzene-sulfonamide
- 与 para-amino-benzene-sulfonamide 相关的网络例句 [注:此内容来源于网络,仅供参考]
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No governo nacionalista assumiu Taiwan, econmicos, aprendizagem de línguas, servios, e após a colocao de emprego, Taiwan e declarou que jamais deixaria a isca no Hualien e recrutamento Taitung grande, o objeto para a juventude local aborígenes.
在国民政府接收台湾之后,以经济、学语言、退伍后安排工作,并宣称绝不会离开台湾为诱饵,在花东大肆徵兵,对象为当地的原住民青年。
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BACKGROUND: Posterior tibial nerve block has traditionallybeen performed in the para-medial malleolar area without nervestimulator guidance.
背景:在没有神经刺激器引导的情况下,胫后神经阻滞传统是在旁正中踝区域完成的。
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When the methoxyl grpup is present, the chlorine enters para to it.
When 的methoxyl grpup在场,氯输入帕拉向它。
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The main characteristics of the skarn are as follows:(1)occurring as bedded,para-bedded in the contact zone between carbonate and microclastic rock,and its occurrence being accordance to the strata;(2)cut by later vein rock,so having no relation with the magmatic rock on genesis;(3)metasomatic skarn having replacement remnant texture,pseudobreccia structure,while depositional skarn,particulate crystall...
研究表明该夕卡岩的主要特征为:(1)呈层状、似层状赋存于碳酸盐岩和细碎屑岩接触带,产状与地层一致;(2 )被后期脉岩穿切,成因上与岩浆岩无关;(3)喷流交代夕卡岩具交代残余结构和假角砾状构造,而喷流沉积夕卡岩具微粒状结构、雏晶结构和层纹、条纹、条带状构造,反映了二者不同的喷流成因;(4)发育典型的低温夕卡岩矿物组合,其形成温度小于30 0℃;(5 )夕卡岩的稀土配分型式与围岩的一致。
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The optimum reaction conditions were: at present of acetic anhydride, a stoichiometric quantity of nitric acid, at room temperature for 40 minutes. Nitration of chlorobenzene gave a,50% yield of mononitro compounds, and an ortho-para isomer ratio 0.20 in product distribution of chlorobenzene mononitration.
结果表明:硅钨酸催化性能较好,催化剂载体以纳米二氧化硅最好,反应条件中醋酸酐用量是主要影响因素;SiW_(12)O_(40)~(4-)/纳米SiO_2催化剂具有强对位选择性:在醋酸酐存在下,氯苯与等当量的硝酸室温下反应40分钟,氯苯一硝化产物中邻/对硝基氯苯异构体的质量比达0.2,产率可达50%。
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This paper mainly describes from habitat conditions, morphological characteristics, traits, production capacity, a typical cross-section,:Parasalic Aqui-Alkalic Halosols; Parasalic Hapli- Alkalic Halosols;:Para-alkalic Aqui- Orthic Halosols,Gleyic Aqui- Orthic Halosols.so as to provide theoretical basis for research, teaching and production.
本文主要从生境条件,形态特征,性状,生产能力,典型剖面等几个方面介绍弱盐潮湿碱积盐成土,弱盐简育碱积盐成土,弱碱潮湿正常盐成土,潜育潮湿正常盐成土,为土壤的科研、教学和生产提供理论基础。
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For three different reaction paths leading to ortho, meta, para-chloropyridine, two transition states have been located by PM3 on each reaction path, while only one transition state by ab initio, however both methods give the same results: the energy of transition state and activation barrier on producing 2-chloropyridine are the lowest among three reaction paths, so 2-chloropyridine is obtained priorly, which agrees with the experimental results.
生成邻、间、对氯代吡啶三条不同反应途径PM3方法优化得到两个过渡态,而从头算方法中只优化得到一个过渡态。但两种方法的研究结果均表明:三条反应途径中生成2-氯吡啶的过渡态能量和活化能最低,因此反应优先生成2-氯吡啶,与实验结果一致。
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Four chalcones were synthesized by aldol condensation reaction of acetophenone or para-substituted acetophenones with 2-phenyl-1,2,3-triazol-4-carboxaldehyde, which reacted with three hydrazines in glacial acetic acid under refluxing to give a series of pyrazoline derivatives.
以2-苯基-1,2,3-三唑基-4-甲醛为原料,与苯乙酮[或取代苯乙酮(1a~1d)]发生羟醛缩合,生成相应的查尔酮(2a~2d),再与不同的肼反应,合成了12种新的5位含2-苯基-1,2,3-三唑基的吡唑啉衍生物3a~3d,4a~4d,5a~5d。
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The largest chemical shifts were observed for the proton 1.48 ppm adjacent to the central pyridinium ring and para-protons 1.47 ppm with respect to the nitrogen of pyridinium.
在最终的亲核加成化合物2-F的芳香族区中的这些化学位移与9,10二氢-9-甲氧基-9-(4甲氧基苯基)-10-甲基吖啶的对应物是一致的,17b 这被证明是与过量的MeOH形成的9-苯基吖啶盐的加成化合物(支持信息中的图S7)。
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The largest chemical shifts were observed for the proton 1.48 ppm adjacent to the central pyridinium ring and para-protons 1.47 ppm with respect to the nitrogen of pyridinium.
对于与中心吡啶环相邻的质子(ΔHa=1.48ppm)以及相对于吡啶的氮的对位质子((ΔHc=1.47ppm)观察到了最大的化学位移。
- 相关中文对照歌词
- Ya Para Que
- Nominada Para Nada
- Yo Nací Para Amarte
- Para Vivir
- Mañana Es Para Siempre
- Toca Para Mi
- Para Que Me Quieras
- Para Decirle Adiós
- ¿Qué Eres Para Mí?
- Para Bien O Para Mal
- 推荐网络例句
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Do you know, i need you to come back
你知道吗,我需要你回来
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Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.
1〕 杨银书,王祥生,李德昌。安徽省首次发现嗜群血蜱。
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Chapter Three: Type classification of DE structure in Sino-Tibetan languages.
第三章汉藏语&的&字结构的类型划分。