作用中心

In recent years,studies have revealed important roles of BAFF and its receptors in immune regulation of antibody isotype switching,germinal center maintenance,and T cell co-stimulation,that may provide new drugs in the future for the treatment of autoimmune disorders,lymphoma and B cell immunodeficiencies.

近几年来的研究表明，BAFF及其受体在抗体类型转换、生发中心维持、T细胞共刺激等方面发挥着重要的免疫调节作用，对自身免疫疾病、淋巴瘤和B细胞免疫缺陷的治疗具有潜在的应用前景。

With the organizing style and strategies becoming more Jacobinical, NEA gathers the resources admired by all other teacher union, and changes into a teacher union having the maximum members and biggest economic power in America. Before the 1960s, AFT had no power to organize the action of the teachers in the whole country. But after then, AFT enormously had succeeded in competition with NEA, and it had great impact on the drafting and implement of all kinds of the educational policies in the urban area.

随着全美教育协会组织风格和组织策略的日益激进，协会集聚了令所有其它美国教师组织羡慕的资源，全美教育协会成为美国会员人数最多、经济实力最强大的教师组织。20世纪60年代以前，美国教师联盟还没有组织全国教师开展活动的能力，但是在此以后，在与全美教育协会的竞争中获得了重大胜利后，美国教师联盟对城市中心地区的各种教育政策的制定与实施发挥了很大的影响作用。

Practice will indictate that One country two system ,not only help to maintain the interest of each ,but also to keep the central position of international finance ,trade ,sailing of Hongkong, we trust wholly,as stick to the proper policy,under the support of homeland,Hongkong will create more good future,we also believe that the successful practice of "one country two system"in Hongkong will be a sample to the Maco return to China and to solve the Taiwan affairs.

实践将不断证明，&一国两制&的方针，不仅有利于维护香港各阶层的利益，也有利于保持香港作为国际金融、贸易、航运中心的地位。完全有理由相信，只要坚持这一正确方针，在祖国内地的支持下，香港一定能够创造更加美好的未来。也完全有理由相信，&一国两制&在香港的成功实践，对澳门顺利回归祖国和台湾问题的最终解决，一定会起到示范作用。

Pharmacological study indicates that mercapto may play an important role in enzyme activity of dynamin-like protein.

药理学性质研究表明巯基可能在酶的活性中心起重要作用。

Arsenic poisoning have magma role to paralysis small blood vessels,mercapto Jimei inhibit the activity of the liver and fat necrosischange Hepatic Lobules Centre, heart, liver, kidney, intestinecongestion, epithelial cell necrosis, telangiectasia.

砒霜有原浆毒作用，能麻痹细血管，抑制巯基梅的活性，并使肝脏脂变肝小叶中心坏死，心、肝、肾、肠充血，上皮细胞坏死，毛细血管扩张。

Arsenic poisoning have magma role to paralysis small blood vessels, mercapto Jimei inh ibit the activity of the liver and fat necrosis change Hepatic Lobules Centre, heart, liver, kidney, intestine congestion, epithelial cell necrosis, telangiectasia.

砒霜有原浆毒作用，能麻痹细血管，抑制巯基梅的活性，并使肝脏脂变肝小叶中心坏死，心、肝、肾、肠充血，上皮细胞坏死，毛细血管扩张。

Compared with other microbial systems, have played a central role in the development of gene engineering.

与其它微生物体系相比，在基因工程的发展过程中起中心作用。

Mylonitic coal may develop in the center of strongly deformational belt in pressing tectonic stress field. Since mylonitic coal is limited in a narrow area, biggish area in that tectonic coals of brittle deformation distribute is favorable for CBM exploration. Moat of areas are advantageous for formation of coalbed fractures and increase of permeability in extension stress field, but it is easy to beget dissipation of CBM and decrease of gas content. Therefore, study of structure of gas reservoir should be taken seriously.

研究表明，挤压应力场作用下，在强变形带的中心及其附近，可以形成糜棱煤类构造煤，但糜棱煤分布较为局限；在较大范围内形成脆性变形系列的构造煤，是煤层气勘采的有利区带；拉张构造应力场中，大部分区域内有利于煤层裂隙的形成和渗透率的提高，但易造成煤层气的散失，含气量降低，应重视有利的储气构造的研究。

The flow field construct of meso-β cloud clusters which bring the heavy-hard rainfall in northeast plateau is that the low level cloud cluster is located in the south of converging region, the southern low level influx converged in the cloud cluster and have some affection on the setting up of the rainstorm in the low level. In the middle level, the cloud cluster is lied in near the westerly trough and the southwest airflow ahead of the trough constantly transmits water vapor to the cloud cluster. In the high level, there are a pair of high and low pressure centers around cloud clusters and are obvious divergence airflow, and there is weak ageostrophic high level outflux along pressure force.

产生高原东北部地区大到暴雨天气过程的中—β尺度云团的流场结构特征是：在低层，云团位于辐合区的南部，低层的偏南低空入流在云团内辐合，对大到暴雨的形成有一定的作用；在中层，云团位于西风带低槽附近，槽前的西南气流不断地给云团输送水汽；在高层，云团附近有一对高、低压中心，为明显的辐散气流，沿气压梯度力方向有强度不强的非地转高空出流。

In most cases, human thought and action are overdetermined by an array of causes, so the structure of language may not play a central causal role.

在大多数情况下，人的思想和行动都是由一系列的原因所导致的，因此，语言的结构可能无法发挥中心作用。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。