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Psychrophilic and psychro-tolerant bacteria were cultured and used for screening the cold-active enzymes. Some characteristics of cold-active protease and chitinase were analyzed then.Microbial 16S rDNA clone libraries of deep sea sediments were constructed and studied by PCR-RFLP (Restriction Fragment Length Polymorphism) and phylogenetic analysis based on 16S rDNA sequences.

通过构建沉积物中微生物16S rDNA克隆文库，采用PCR-RFLP分析、DNA-DNA杂交、16S rDNA序列测定以及系统发育分析的方法，研究了两太平洋&暖池&区和东太平洋&结核&区两个不同海区深海沉积物中的微生物多样性和群落结构特征及其与环境的相互关系，得到了一些与&暖池&区环境特点紧密相关的新发现，新认识。

Nowadays most of researches on the multicast routing are how to generate multicast tree. In case of multicast tree failure, there need to re-route all of nodes behind the failure point so much as re-build the whole tree, this will deteriorate Quality-of-Service, on the other hand, it is insufferable in some multicast applications. We proposed a Fault-Tolerant multicast scheme to resolve this problem. Our scheme creates backup paths crosswise in the ramose node. It can reduce additional cost greatly and recover the failure of multicast tree rapidly.

现在关于多播路由的研究大多着眼于多播树的生成，一旦多播树出现故障，就需要对故障点以下的所有多播接收节点进行重新路由甚至对整个多播树进行重新构造，这一方面降低了服务质量，另一方面有些多播应用不允许长时间的中断，对此本文提出了一种多播容错方案，采用在分枝节点之间建立备份路径的措施，可以在很大程度上减少额外的代价，能够在最快的时间内恢复多播树的故障，并使得恢复后的多播树形状基本上没有改变。

Nowadays most of researches on the multicast routing are how to generate multicast tree. In case of multicast tree failure, there need to re-route all of nodes behind the failure point so much as re-build the whole tree, this will deteriorate Quality-of-Service, on the other hand, it is insufferable in some multicast applications. We proposed a Fault-Tolerant multicast scheme to resolve this problem. Our scheme creates backup paths crosswise in the ramose node. It can reduce additional cost greatly and recover the failure of multicast tree rapidly.

现在关于多播路由的研究大多著眼于多播树的生成，一旦多播树出现故障，就需要对故障点以下的所有多播接收节点进行重新路由甚至对整个多播树进行重新构造，这一方面降低了服务质量，另一方面有些多播应用不允许长时间的中断，对此本文提出了一种多播容错方案，采用在分枝节点之间建立备份路径的措施，可以在很大程度上减少额外的代价，能够在最快的时间内恢复多播树的故障，并使得恢复后的多播树形状基本上没有改变。

Repopulation of human L02 hepatocytes in tolerant rats treated with 2-acetaminofluorene.

L02细胞在2-乙酰氨基芴处理大鼠肝中的增殖。

Since 1992,in the Institute of Biological Science and Technology of Hainan University,the pollen tube introduction method was used to breed tomato with total DNA of Rhizophora apicularta,a salt-tolerant,seashore-grown plant.

1992年以来，海南大学生物技术研究所开始用花粉管方法将红树总DNA导入普通番茄，在海滩上用海水进行耐盐性筛选，首次获得了能耐海水浇灌的耐盐番茄。

As one of common pioneer plants growing on mine tailings in Yunnan Province, Rumex dentatus has generated metal tolerant ecotype and could therefore be treated as an ideal experimental material for stress ecology study.

作为云南矿区废弃地常见的先锋植物，齿果酸模已形成对重金属污染的耐性生态型，是理想的逆境生态学研究实验材料。

Mesosulfuron (at 16.0g-ha"') plus safener AE F107892 (at 600ml-ha"1) reduced the shoot height of the wheat cultivars accordingly. R-6 was the most tolerant and s-18 was the most sensitive to mesosulfuron.

甲基二磺隆剂量为16.0g·ha~(-1与安全剂吡唑解草酯(AE F107892)剂量为600ml·ha~(-1一起使用可以相应地抑制小麦的株高生K。

In this research, we isolated SbNHX1 gene from Salicornia Bigelovii, and expressed it in E. coli. Salt tolerant analysis has been done in the SbNHX1 expressing E.

本研究对从北美海蓬子中分离的Na+/H+逆向运输蛋白基因在微生物中进行了表达，并进行了耐盐分析。

To evaluate the effects of combined salt tolerant mechanisms, PEAMT gene from Salicornia herbacea was introduced into the transgenic tobacco containing CMO by Agrobacterium-mediated transformation.

实验中以农杆菌介导法向转CMO(盐角草胆碱单加氧酶编码基因)的烟草株系中转入盐角草磷酸乙醇胺N-甲基转移酶基因。

Drought and salination are the key factor of environmental crisis. So the research on the halo-tolerant gene engineering will play extreme important function for the alteration to the salination of soil.

盐碱化是导致我国环境危机的重要因素之一，利用基因工程培育抗旱耐盐品种已成为解决我国盐碱化日益严重问题的一条重要途径。

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。