查询词典 ET

Bruce Alberts et al., Essential Cell Biology: An Introduction to Molecular Biology of the Cell.

翟中和，王喜忠，丁明孝主编，细胞生物学，北京：高等教育出版社 2000 年

So, the saccharoidal albite zone is magmatic, instead of resulting from the metasomatism.

根据Watson(1978)、Ryerson and Hess(1980)在液相线以上温度下实验研究获得的微量元素在不混溶的基性和酸性液相中分配特征，以及Webster et al。

We investigated constituent of triterpenoid saponins ofAlbizzia, two new compounds together with two known compounds were isolated from Albizzia julibrissin Durazz. by using column chromatography (macroreticular resin, silica gel, Sephadex gel, reverse phase silica gel),preparative HPLC methods et al.On the basis of spectroscopic analysis, including IR,ESI-MS,~1H-NMR,~(13)C-NMR,HMBC,HMQC,~1H-~1HCOSY and chemical methods, the structure of two new compounds were identified as 3 - O -[β-D-xylopyranosyl(1→2)-β-D-fucopyranosyl (1→6)-β- D -2- deoxy - 2 - acetoamidoglucopyranosyl] -21-O-[(6S)-2- trans- 2,6-dimethyl - 6 - O-β- D - quinovopyranosyl -2,7- octadienoyl] - acacic acid- 28 - O-β-D-glucopyranosyl(1→3)[α-L-arabinofuranosyl(1→4)]-α-L-rhamnopyranosyl(1→2)-β-D-glucopyranoside acacic acid 3- O -β- D- glucopyranosy(1→3)-β- D- fucopyranosl(1→6) [β-D- xylopyranosyl (1→2)]-β-D-glucopyranoside ;two known compounds were acacic acid lactone 3- O -β-D- xylopyranosyl-(1→2)-β-D-fucopyranosl (1→6)- 2-deoxy -2 -acetoamido -β-D- glucopyranoside ; acacic acid lactone 3- O-β-D-xylopyranosyl(1→2)-α-L- arabinopyranosl (1→6)- 2- deoxy - 2- acetoamido -β-D-glucopyranoside . The study lays chemical foundation and chemical reference substance for enhancing quality standard of Albizzia julibrissin Durazz.

本研究论文在综述国内外对合欢属Albizzia三萜皂苷化学成分和药理作用研究进展的基础上，利用传统植化分离手段和现代分离技术，包括大孔树脂、硅胶、葡聚糖凝胶、反相硅胶等柱色谱，制备高效液相色谱法等技术从中药合欢皮中分离得到了4个化合物，其中，2个新化合物和2个己知化合物，并进一步通过现代分析技术IR，ESI-MS，~1H-NMR，~(13C-NMR，HMBC，HMQC，~1H-~1HCOSY等和化学方法鉴定了2个新化合物的结构分别是：3-O-[β-D-吡喃木糖基(1→2)-β-D-吡喃夫糖基(1→6)-β-D-2-去氧-2-乙酰氨基吡喃葡萄糖基]-21-O-[(6S)-2-反式-2，6-二甲基-6-O-β-D-吡喃鸡纳糖基-2，7-辛二烯酸基]-金合欢酸-28-O-α-L-呋喃阿拉伯糖基(1→4)[β-D-吡喃葡萄糖基(1→3)]-α-L-吡喃鼠李糖基(1→2)-β-D-吡喃葡萄糖苷，金合欢酸3-O-β-D-吡喃葡萄糖基(1→3)-β-D-吡喃夫糖基(1→6)[β-D-吡喃木糖基(1→2)]-β-D-吡喃葡萄糖苷；2个已知化合物结构分别是：金和欢酸内酯3-O-β-D-吡喃木糖基(1→2)-β-D-吡喃夫糖基(1→6)-β-D-2-去氧-2-乙酰氨基吡喃葡萄糖苷，金和欢酸内酯3-O-β-D-吡喃木糖基(1→2)-α-L-吡喃阿拉伯糖基(1→6)-β-D-2-去氧-2-乙酰氨基吡喃葡萄糖苷。

The influence of polymerization degree and alcoholysis degree of polyvinyl alcohol, the ratio of Span - 20 to Tween - 20, the amount of polyvinyl alcohol, the amount of water - soluble inhibitor, pretreatment and after - treatment processes and et al on the hydrophobic property and stability of the water -repellent is investigated.

研制了一种以聚乙烯醇、2种非离子表面活性剂——Span-20和Tween-20、水溶性缓蚀剂等为原料的水性憎水剂；考察了聚乙烯醇的聚合度和醇解度、2种非离子表面活性剂之间的配比、聚乙烯醇含量、乳化剂含量、水溶性缓蚀剂含量、预处理和后处理工序等因素对憎水剂憎水效果及稳定性的影响。

It is discovered that the Newton direction of Peng et al can be obtained from an algebraically equivalent path.

与此同时，分析了该方法与Peng等人近期工作的联系，发现互补条件的右端可表示成熵函数的负梯度。

Fischer et al.in 1973. Since these compounds have various particular reactions in organic synthesis,especially in vitamins,peptides,synthesis of anti-cancer drugs and natural products,and as olefins, alkyne polymerization catalysts demonstrated its unique advantages and broad application prospects.

由于这类化合物有各种奇特的反应性能，在有机合成中，尤其是在维生素，多肽，抗癌药物和天然产物的合成，和作为烯烃，炔烃聚合催化剂方面显示出其独特的优越性和广阔的应用前景。

The merchant who says:"Montpellier not active, Marseilles fine quality," the broker on 'change who says:"Assets at end of current month," the gambler who says:"Tiers et tout, refait de pique," the sheriff of the Norman Isles who says: The holder in fee reverting to his landed estate cannot claim the fruits of that estate during the hereditary seizure of the real estate by the mortgagor," the playwright who says:"The piece was hissed," the comedian who says:"I've made a hit," the philosopher who says:"Phenomenal triplicity," the huntsman who says:"Voileci allais, Voileci fuyant," the phrenologist who says:"Amativeness, combativeness, secretiveness," the infantry soldier who says:"My shooting-iron," the cavalry-man who says:"My turkey-cock," the fencing-master who says:"Tierce, quarte, break,"the printer who says:"My shooting-stick and galley,--all, printer, fencing-master, cavalry dragoon, infantry-man, phrenologist, huntsman, philosopher, comedian, playwright, sheriff, gambler, stock-broker, and merchant, speak slang.

商人说"蒙培利埃可发售"，"优质马赛"；兑换商说"延期交割，本月底的手续贴补费"；玩纸牌的人说"通行无阻，黑桃完啦"；诺曼底群岛的法庭执达吏说"在租户有禁令的地段，在宣布对拒绝者的不动产有继承权时，不能从这地段要求收益"；闹剧作家说"喝了倒彩"；喜剧作家说"我垮了"；哲学家说"三重性"；猎人说"红野禽，食用野禽"；骨相家说"友善，好战，热中于秘密"；步兵说"我的黑管"；骑兵说"我的小火鸡"；剑术师说"三度，四度，冲刺"；印刷工人说"加铅条"；所有这些印刷工人、剑术师、骑兵、步兵、骨相家、猎人、哲学家、喜剧作家，闹剧作家、法庭执达吏、玩纸牌的人、兑换商、商人，全是在说黑话。

On hearing the hubbub made by the passersby, Tholomyes' merry auditors turned their heads, and Tholomyes took advantage of the opportunity to bring his allocution to a close with this melancholy strophe:--Elle etait de ce monde ou coucous et carrosses

在行人轰动声中多罗米埃的那些愉快的听众全掉转头去看了，多罗米埃趁这机会念了这样一节忧伤的诗来结束他的演讲

Historically, the discovery of the buckminsterfullerene molecule by Kroto et. al in 1985 when they investigated the nature of carbon present in interstellar space is unique since it is one and only new allotrope discovered in the 20th century.

从历史角度来看，1985年Kroto等人发现富勒烯C〓的这件事可以说是独一无二的，因为C〓是整个二十世纪发现的唯一一种新的同素异形体。

Fullerene, the third carbon allotrope besides graphite and diamond, was discovered by Kroto et al. in 1985. Since then, the studies of fullerenes has become the worldwide hot topic and significant progresses in many fields have been achieved.

富勒烯为除金刚石和石墨外碳元素的第三种同素异形体，自Kroto等1985年发现以来，对富勒烯的研究一直是世界性的热点话题，并在多个方面取得重要进展。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。