链体

This showed that the electron density of a quinoid ring increased. The peaks of the quaternary carbon atoms of the benzene rings, which were adjacent to the quinoid ring, also shifted to higher field. But the peaks of other C atoms shifted to lower field.

NMR结果表明苯胺低聚体掺杂后主链上的电荷重新分布，环上的H原子上的电子被C原子吸引，电荷密度降低，在〓 NMR中谱峰向低场移动。C原子的谱峰也相应发生变化，醌环上电荷密度增加，全部C原子的峰向高场移动，与醌环相邻苯环受其影响季碳峰移向高场，非季碳峰移向低场。

Objective: To study lysosomes involvement in the degradation of ricin A chain.

日的：研究溶酶体在蓖麻毒素A链细胞内转运过程中的作用。

Saponins, steroid saponins, which are rich and play the most important physiologically active compounds in yam. The studies of steroid saponins of other plants found that glycone on saponins played an important physiological activity. Because of the structural differences between saponin glycosides with different forms and sapogenin resulting from the removal of glycone by hydrolysis on saponins , caused the different physiological effect.

山药含有丰富的皂，属类固醇皂，为山药所含最具生理活性的重要化合物；从其他植物类固醇皂的研究发现，醣基於皂的生理活性上扮演著相当重要的角色，其所接醣基的多寡与有无，醣基的组成、醣的键结型式、醣基链的长度及支链的有无等，皆会影响其生理功效；故不同形式配醣体的的皂，及水解后造成醣基去除而形成皂元，因其结构的不同，产生之生理功效亦不尽相同。

A new kind of magnesium alloys has been synthesized by high energy ball-milling of Mg and Fe mixed powders.Due to the high corrosion speed and reacting efficiency,the alloys are generally called super-corroding alloys.A SCA bulk is fabricated through cold-pressing and sintering the mechanically alloyed Mg-Fe powders.The chemical reaction of SCA with seawater rapidly releases heat and hydrogen gas,which may play very important roles in many ocean applications.For example,the reaction heat can be used to keep diver clothes warm;SCA corrosive links with the function of self-destruction can be utilized to control the sinking and floating of sonobuoy, and to salvage the training torpedo or other instruments.In addition,the reaction heat of SCA can be applied to heat food,machinery and ice or snow,which is thus very helpful for mountaineers.

超腐蚀合金采用Mg和Fe混合粉末，经高能球磨机械合金化、冷压、烧结，形成Mg-Fe合金块体，具有很高的海水腐蚀速率和反应效率，该合金化学反应放出的热量和氢气可在海洋工程中发挥重要作用，例如：可为深海作业潜水衣的保暖提供热量；由其制造的腐蚀链通过自毁机制，可用来控制声纳浮标的沉浮时间，打捞和回收水中的贵重仪器、装置以及训练用的靶雷；在偏远地区和寒冷地带，利用该合金的反应放热特性，不仅可加热机械、仪表或食品，而且能为登山运动员提供取暖所需的热量。

An antibiotic derived from cultures of the bacterium Streptomyces lincolnensis, used in the treatment of certain penicillin-resistant infections.

林肯霉素从林肯链酶菌的培根菌体中提取的一种抗菌素，用于治疗某种抗青霉素的感染

The effect leading to mutation occurs during DNA replication when a rare tautomer in the template strand matches with a noncomplementary base.

当模板链中的稀有同分异构体与非互补的碱基配对时，则在DNA复制过程中就会产生导致突变的影响。

Objective To make an Achilles tenotomy rat model to observe the change in soleus weight and expression of myosin heavy chain isoform mRNA, and to find some clues for elucidating the mechanisms of soleus disuse.

目的建立大鼠跟腱切断模型，观测并比较跟腱切断与尾部悬吊大鼠比目鱼肌重量与肌球蛋白重链异构体 mRNA表达的变化，为探讨骨骼肌废用性萎缩的机理提供实验线索。

Objective To investigate the age distribution of the active trachoma and evaluate the significance of trachoma classi-ficltion and ligase chain reaction.

目的 了解活动性沙眼患者的年龄分布，评价WHO简易沙眼分级法和连接酶链反应诊断沙眼衣原体的意义。

Methods:15 cases of conjuctivitis were detected for the trachoma chlamydia by fluoroqenic quantitative PCR and super microscope diagnosis system.

利用荧光定量聚合酶链反应和超高倍显微诊断系统镜检检测 15例结膜炎患者的沙眼衣原体。

The method comprises melt extruding a mixture comprising a polyester and one or more alkyl metal sulfonates where the metal is Na, Li or K and the alkyl is straight or branched chain alkyl of 12 to 15 carbon atoms, or is straight or branched chain alkenyl of 12 to 18 carbon atoms.

方法包括将包括聚酯和一种或多种烷基金属磺酸盐的混合物熔体挤出，其中金属是Na、Li或K和烷基是12-15个碳原子的直链或支链烷基，或是12-18个碳原子的直链或支链链烯基。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。