查询词典 elasticity of substitution

Starch acetates with different degrees of substitution were synthesized by reaction of corn starch and acetic acid/acetic anhydride catalyzed with concentrated.

以浓硫酸作催化剂，玉米淀粉为原料，冰醋酸和醋酸配为改性剂，合成了不同取代度的玉米淀粉醋酸酯。

Methods Amoxicillin was synthesized from a main raw material 6-aminopenicillanic acid(6-APA) and acid anhydrides by nucleophilic substitution.

以6-APA为起始原料，工艺路线为6-APA胺盐溶液与混合酸酐反应得阿莫西林。

Barryxzz:Good, bogans sit. Damn, we were leading. Excellent substitution, now let's send Yao in to continue the tank job

好，博甘斯下场了，靠，我们刚才还领先，非常好的换人，现在把姚明换上场继续打假球。

4 Kinds of methylthiazoline multithioether s were synthesized from the nucleophilic substitution of 5-methyl-thiazolidine-2-thione reacting with bromides,respectively.

通过5-甲基-2-噻唑烷硫酮与溴代物的亲核取代反应合成了四种甲基噻唑啉多头硫醚，利用红外光谱、核磁共振(1H NMR)光谱和元素分析对这四种化合物的结构进行了表征。

Vitrectomy allows us to manage otherwise untreatable ocular pathologies, but the substitution of the vitreous by an artificial intraocular irrigation solution would probably disturb the physiology of the retina and choroids.

随着玻璃体切除术的出现和日益发展，眼内灌注液作为术中使用的玻璃体替代物，直接影响视网膜和脉络膜的正常生理功能。

Vitrectomy allows us to manage otherwise untreatable ocular pathologies, but the substitution of the vitreous by an artificial intraocular irrigation solution would probably disturb the physiology of the retina and choroids.

中文题名眼内灌注液对视网膜色素上皮细胞凋亡的影响副题名外文题名 The effects of different intraocular irrigating solutions on the apoptosis of RPE cells 论文作者殷春悦导师黎晓新教授学科专业眼科学研究领域\研究方向临床医疗技能训练与研究学位级别博士学位授予单位北京大学学位授予日期2001 论文页码总数94页关键词玻璃体切除术眼科手术细胞凋亡视网膜色素上皮细胞眼内灌注液馆藏号BSLW /2001 /R779.6 /42 随着玻璃体切除术的出现和日益发展，眼内灌注液作为术中使用的玻璃体替代物，直接影响视网膜和脉络膜的正常生理功能。

The hydrogen bonding energies for the twentyα- andβ-peptide conformers were evaluated by the substitution method.

应用取代法估算了这20个α-和β-多肽构象中不同类型的N-H…O=C分子内氢键键能。

Substitution herein refers to the rhetorical device that connotates by purposeful use of wrong or "freak" words.

&改字&是一种通过故意写错字或形体怪异之字来暗示寓意的修辞方法。

A new monomer,4-hexanoxyl-4′-undecylene-[10]-acyloxyazobenzene was synthesized using the main materials:phenol,underlenic acid,1-bromo- n -hexane, p -nitrophenol,thionyl chloride,by the substitution,reduction,couping and diazotization methods.A new polymer was prepared by hydrosilation reaction of poly (methylhy-drosiloxane) with the monomer.

以苯酚、十一烯酸、正溴己烷、对硝基苯酚和二氯亚砜为主要原料，通过取代、还原、重氮化和偶合等反应，合成了一种新的液晶单体 4-己氧基-4′-十一烯-[10]-酰氧基偶氮苯，并与聚通过硅氢加成生成一种新的高分子液晶。

The experiments and practices offer some successful experiences for the popularized application of vibration and substitution method in the reinforcement of similar tailings dames.

试验和实践为振冲置换法在类似尾矿库加固中的推广应用提供了成功经验。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48