活跃分子

During the process of long-time adaptive evolution, wetland plants adopted a series of special strategies to acclimate to salt stress. The main strategies are: 1 life history adjustment, e. g., to adjust seed germination time, implement seed dormancy and viviparity, and change reproductive manner to escape from direct salt stress, 2 morphological adjustment, e. g., to adjust biomass allocation pattern, age stem, defoliate, and carnify vegetative organs to isolate the redundant Na(superscript +) to the inactive-metabolism shoots or exclude the Na(superscript +)from tissues; 3 anatomic adjustment, e. g., to sink stoma, develop aerenchyma, and thicken cuticle and phellogen to maintain normal photosynthesis and respiration; 4 physiological and biochemical adjustment, e. g., to exclude and excrete salt, compartmentalize ions, adjust osmosis, do selective absorption, regulate hormones, and induce antioxidative enzymes to maintain the osmotic equilibrium and eliminate the active oxygen in cell; and 5 molecular level adjustment, e. g., to start up many salt-induced genes to regulate the metabolic responses to salt stress.

在长期的适应进化过程中，湿地植物形成了多种适应盐胁迫的策略，主要有：1生活史方面，植物可通过种子萌发时间的调整、种子体眠、胎生、繁殖方式的改变等逃避盐度的直接伤害；2形态学方面，植物可通过生物量分配模式的调整、茎的老化、落叶及营养器官的肉质化等将多余的Na隔离到代谢不活跃的茎中或将其排出体外；3解剖学方面，植物可通过气孔下陷、发达的通气组织、增加细胞木栓层、角质层及栅栏组织的厚度等以维持植物正常的光合作用和呼吸作用；4生理生化方面，植物可通过离子区隔化、拒盐、泌盐、选择性吸收、渗透调节、激素调节及抗氧化物酶的诱导等来维持细胞内正常的渗透压，清除胞内活性氧分子；5分子水平方面，植物可通过多种与盐胁迫相关的基因来调控细胞内的多种代谢反应。

The study of molecular topological indices and the invariants of molecular graph is one of the most active area in the modern chemical graph theory.

分子拓扑指数以及分子图的不变量的研究是现代化学图论中最活跃的研究领域之一。

Brzezinski says any troop increases should be relatively small, and focused on particular problem areas in Afghanistan, where Taliban insurgents who support the country's former government have been particularly active in recent months.

布热津斯基认为，任何增兵都应该是小规模的，并且专注于阿富汗境内特别有问题的地区，也就是近几个月来，支持前政府的塔利班激进分子特别活跃的地区。

A novel self-organized thin film of a cyanine dye is fabricated with the spincoating technique.

0引言有序分子自组装聚集体的构筑和它们的非线性光学特性是当今分子光电子学领域的一个非常活跃的研究热点。

The conductance characteristics of the pentacene molecular tap with the metal electrodes has been researched theoretically by considering only one π orbital electron per carbon atom.

在考虑到Pentacene分子的碳原子中的唯一个活跃的π电子的情况下，从理论上研究了两端接有金属电极的Pentacene分子带的Ballistic传导特性。

With the rapid growth in supramolecular chemistry in recent years, a great deal of effort has been devoted to the design and assembly of supramolecular compounds, for these compounds have potential applications in catalyses , molecular recognition, molecular electronics, photonic materials and so on.

近年来，超分子配合物因在催化化学、主客体-超分子化学和分子磁性材料、超导材料、非线形光学材料等方面的潜在应用价值而成为最活跃的研究领域之一。

The lipid moity is the molecular"endotoxic principle", and highly conserved among all genus. Lipid A is the ideal target for developing endotoxin neutralizer.

用小分子中和内毒素活性是一个活跃的研究方向，高亲和力是小分子中和内毒素活性的前提和关键，小分子分为肽类和非肽类，肽类是研究的主要方向。

This work is mainly concerned with molecular magnetism of polynuclear complexes and supramolecular crystal engineering.

本论文围绕多核配合物的分子磁学和超分子晶体工程这两个最为活跃的前沿研究领域，选用大环配体tacn（1，4，7-三氮杂环壬烷）和含有外延桥的双草胺。。。

China's "leftists" are becoming more active as the global economy sputters. Mr Zhang belongs to an extreme fringe that pines for Maoist egalitarianism, state ownership and the certainty that America is an enemy.

全球经济萧条时，中国的左派分子变得愈来愈活跃，张先生属于极端主义分子，信奉毛泽东的平均主义，国家所有制，理所当然地认为美国是敌人。

Hillary and I went to church with Jesse Jackson in Soweto, the teeming township that had produced so many of the anti-apartheid activists.

在索韦托，我和希拉里与杰西·杰克逊一起去了教堂，这个人口众多的有色人种居住区产出了很多反种族隔离的活跃分子。

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。