非活性的

We theoretically investigated the effects of incorporating Ih, T-type Ca2+ current, sustained inward current, and/or low-voltage-activated L-type Ca2+ channel current on 1 creation of BP cells, 2 robustness of BP activity to electrotonic loads of nonpacemaking cells, and 3 BP cell ability to drive NP cells.

我们从理论上研究了合并Ih， T-型 Ca2+流，持续内向电流，和/或低电压激活的L-型Ca2+通道电流对1产生 BP细胞， 2 BP 活性对非起搏细胞电紧张负荷的稳定性，和 3 BP 细胞驱动 NP细胞的能力的作用。

The types, attributes, generation mechanism and enzyme activity of eliminative system of active oxygen species in plant are presented in this paper. In addition, the possible function of active oxygen species that may contribute to disease resistance and the difference of active oxygen species between compatible reaction and incompatible reaction in plant- pathogen interaction are discussed. And the paper commented on the relationships among the aspects talked above.

本文介绍了植物与病原物相互作用过程中活性氧的类型、性质以及活性氧的产生机制和清除系统酶活性；重点讨论在植物与病原体相互关系中活性氧的可能作用，以及植物－病原物亲和性互作与非亲和性互作之间在这方面的差异并对以上几个方面之间的关系进行了评述。

Utilizing the IMP system of temperature measure, common technique of tissue section, analytical method of nutritious constituents, and taking salt-solubility and Ca 2+-ATPase activity as the index of protein denaturation, a comparative study was conducted to determine the effect of freezing on tissue structure of Meretrix linnaeus and Paphia undulata.

利用IMP热电偶测温系统及组织切片技术、食品化学特性的常用分析方法以及测定表征蛋白质变性的盐溶性蛋白溶解度和Ca2+ATPase活性，对文蛤和波纹巴非蛤在冷冻后的组织结构、食品化学特性、蛋白质变性的影响进行了比较研究。

Endurance training increased the activity of iNOS in liver , thereby in2 creasing the level of NO , but the high level of NO didn' t result in the oxidative injury of the liver. I t indicated that the protection or oxidative injuri of nitric oxide in nonalcohol fatty liver was closely related to the physiological state of life.

耐力运动引起非酒精性脂肪肝小鼠肝脏iNOS活性升高，导致 NO水平升高，而高水平的 NO并未造成肝脏的氧化损伤，说明 NO水平的升高并不一定造成氧化损伤，其是否具有氧化损伤作用与机体的生理状态有关。

By comparing the amino acids sequences of SCRs of different regulators of complement activation and homologous structure units of DAF in different species, the conservative and nonconservative amino acids in DAF were determined. The possible activity sites were analysed and mutation amino acids sites to construct the mutant library were defined.3. Constructing and evaluating of yeast display mutant library on DAF scaffold.

SCRs多重序列比较及DAF突变位点的选择通过对补体调控蛋白家族成员、不同种属DAF分子的同源结构单位SCR的氨基酸序列进行多重序列比较，确定了DAF分子中的保守性氨基酸和非保守性氨基酸，并根据已有的实验结果，对DAF分子可能活性位点进行了分析，确定了构建酵母细胞表面呈现库的突变氨基酸位点。

In order to solve the problem of producing large amounts of wastes and undesired o-nitrotoluene in synthesis of p-nitrotoluene with the mixed concentrated mineral acids,the catalytic activity of phosphotungstic acid for selective nitration of toluene was studied and the optimum conditions for preparing the catalyst were investigated.

为解决硝硫混酸对硝化甲苯过程中因甲苯的非选择性硝化产生的o-MNT和大量废酸对环境的危害，研究了磷钨酸对甲苯硝化反应的催化活性。

Among them, the catalysts with the support of SAPO zeolite performed well properties, Pt catalysts exhibited better performance than Pd catalysts, the activity and selectivity of noble catalysts were much better than that of non-noble metal catalysts. The carbides and oxides of W and Mo also performed well for n-heptane isomerization.

正庚烷异构化催化剂中，研究较多的是以SAPO、HZSM-5和Y、β型分子筛为载体的贵金属催化剂，其中SAPO分子筛载体的性能较优，Pt比Pd具有更好的催化性能，非贵金属／分子筛催化剂的活性比贵金属／分子筛催化剂相差较大。

A C-C bond type radical initiator i.e. 1,1,2,2-tetraphenyl-1,2-ethanediol and a S-S bond type thermal iniferter, i.e., tetraethyl thiuram disulfide were used to consist of new reverse ATRP initiation systems TPED/FeCl3/PPh3 and TD/FeCl3/PPh3, respectively."Living"/controlled polymerizations of a polar monomer MMA and a non-polar monomer St were investigated with the initiation systems as well as other new initiation systems; behavior of vinyl polymerization with a new asymmetrical C-C bond type thermal monomeric iniferter was studied also.

前者选用C-C键型的自由基聚合引发剂1，1，2，2-四苯基-1，2-乙二醇、S-S键型的热iniferter二硫化四乙基秋兰姆组成新引发体系TPED/FeCl3/PPh3、TD/FeCl3/PPh3，研究这些引发体系引发MMA、 St聚合的&活性&/控制聚合行为，同时研究一些其他新引发体系；后者合成了一种新的非对称C-C键型热引发转移终止剂，并研究其自由基聚合规律。

The germinating tests were performed on Fraxinus velutina seeds from saline land and none-saline land under different NaCl stress. The germination indexes and the biochemical indexes of the seedlings were measured for studying the differences of germination abilities and protective enzymes between two kinds of the seeds under NaCl stress.

将盐碱地和非盐碱地上采集的绒毛白蜡种子在不同盐胁迫下做发芽试验，测定两类种子的发芽指标和幼苗的生理生化指标，比较它们在不同盐胁迫下的发芽情况、幼苗保护性酶活性、可溶性蛋白和丙二醛含量的差异。

They encompass the following broad bands of biological roles:(1) basic structural units of cellular membranes and cytologically distinct subcellular bodies such as chloroplasts and mitochondria;(2) compartmentalizing units for metabolically active proteins localized in membranes;(3) a store of chemical energy and carbon skeletons; and (4) primary transport systems of nonpolar material through biological fluids.

这类物质无论在功能上还是结构上都有明显不同，它们具有以下广泛的生物学作用。1。细胞膜和细胞中亚细胞器，如叶绿体和线粒体的基本结构单元。2。定位于细胞膜上具有代谢活性蛋白质的划分单位。3。化学能和碳骨架的储藏物质。4。以生物流的形式使细胞内非极性物质得以运输。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。