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The viewpoint of mechanical chemistry was firstly applied to analyze the forming mechanism of chemical bond.

首次应用机械力化学的观点，分析了型煤内化学键形成机理。

As a complete new structure chemical compound, our company firstly use it to treat hepatopathy.

作为一种全新结构的化合物，我公司首创将其用于肝病的治疗。

The counter measures of solving these problems were suggested as follows: firstly, using water resources and fertilizer reasonably and choosing salt tolerance crops to control saltinization; secondly, choosing acid tolerance feed and using the chemical method to control acid rain; finally, soil erosion could be controlled by bioremediation.

对于三种生态环境问题，提出的控制对策如下：盐渍化的治理对策为合理用水、施肥，种植合适的耐盐作物；酸沉降治理对策为种植抗酸作物和采用化学调控方法降低降对作物的损害；水土流失使用生态恢复工程和生态重建工程进行治理。

To the algorithm,firstly,the basic principle of bacterial chemotaxis optimization is introduced.

这种算法利用细菌在化学引诱剂环境中的运动行为来进行函数优化。

The fungus were firstly screened in Congo red plate for cellulase, and then cultured in residues of chinaberry as only carbohydrate supply.

采用纤维素刚果红平板培养基，对采自陕西秦岭山区的土样和腐烂枝干进行初筛，再以川楝残渣为惟一碳源进行摇瓶培养复筛，最后对获得的高纤维素酶活力菌株进行形态学和分子生物学鉴定。

Firstly, of course, you will get a Chinese society membership card as your proof of your membership.

首先，您可以得到一张会员卡，来证实您的学生会会员的身份。

Mr. Jacques is Chairman of CERCLE FRANCO CHINOIS now. He is a famous and influence politician and economist in Europe, America, and Asia. He visited firstly China on 1956, he had visited China for 175 times until 2003. He have been doing a lot of contribution to promote exchange and cooperation of politic, economy and culture between France and China. He has strong and friendly relationship with government, NGO, and commerce circles in Great China. He is or has been also the leaders, or honor leaders of these organisations below

雅克温明登先生是现任法国法中协会主席，他是一个在欧洲、美洲和亚太地区著名的和有影响力的社会活动家和经济学家，他为促进法国和中国之间的政治经济文化交流合作做出了大量的工作和贡献。1956年第一次来中国，截至2008年共195次来华，他与大中华地区政界商界(周恩来邓小平江泽民胡锦涛等老一代及现今领导人)有着非常友好和坚实的沟通交流和关系网络，他也是以下著名组织机构的领导和名誉领导

Chirata, and they were identified as β-sitosterol and swerchirin by spectral method. These two compounds were got firstly from the petrolelum ether fraction of S. chirata.

结论］2种化合物β-谷甾醇与1，8-二羟基-3，5二甲氧基山酮均为首次从印度獐芽菜乙醇提取物的石油醚部位分离得到。

In the process, chloranil firstly was excited to singlet state and then a labile hydrogen abstraction interaction between singlet chloranil andβ-diketones was involved to form singlet stable neutral radical pairs.

光照作用下，四氯苯醌首先跃迁至单线态，然后夺取β二酮类化合物分子中的活泼氢，形成单线态中性自由基对。

Firstly, the expression of the important transport protein Toc33/34 of chloroplast was analyzed.

首先，分析了叶绿体重要外被膜转运蛋白Toc33／Toc34的表达。

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。