作用中心

Penetration weapon plays a very important role in the modern war for it can pierce blindages and destroy enemys command centers in the very deep subterranean area.

侵彻武器能侵彻掩体、摧毁敌方地下深层指挥中心，在现代战争中发挥着十分重要的作用。

But the overseas MMP-1-associated cases of oral cancer lacked those of Taiwan, where there are many betel nut chewers. Therefore, this research aimed at Taiwan, to analyze the MMP-1 expression of oral cancer in the just- mentioned patients.

共选取了奇美医学中心口腔颚面外科 30 位只具有长期嚼食槟榔并接受口腔癌手术切除的患者，分别进行肿瘤样本组织与肿瘤周围组织中 MMP-1 的半定量反转录作用-聚合酶连锁反应，发现在肿瘤样本组织中 MMP-1 mRNA 有普遍提高的表现。

The clay mineralogy composition and clast composition difference between different section or different levels in one section may result from variable intension of the volcanism, distance from the volcanism center and paleogeographical location.

同是深水相P-T界线剖面附近的黏土岩以及同一剖面不同层位的黏土岩中的黏土矿物和碎屑物质存在较大的差异，其原因可能是与火山作用的强弱、离火山活动中心的远近以及所处地理位置有关。

From the aspect of social history,with the inculturation as the center,using the thoeries of Sociology,Anthropology etc.,this dissertation put the history of the Catholicism spreaded in Shanxi from 1620 to 1949 into the local social sequence of Shanxi.It researches the roles that the foreign missionaries,Chinese clergies and its believers took themselves during Catholicism took a foothold and developed in Shanxi,the content of the Catholics\' belief,their all kinds of rituals,their basic conditions and the relationship with offcials and non-believers.

本文把明清以来到1949年天主教在山西的发展放置于山西地方社会的历史脉络中加以理解，从区域社会史角度，以本土化为中心，运用社会学、人类学等理论，探讨天主教在山西立足、扎根、发展过程中，传教士、国籍神职人员、教徒发挥的作用，考察教徒的信仰观念、各种仪式及其基本状况，解析山西官教、民教关系。

"It has long been known that demulcents can soothe irritated mucous membranes and thereby remove the irritation that is fueling the cough reflex," says Paul Doering, co-director of the Drug Information and Pharmacy Resource Center at the University of Florida.

对于咳嗽和咽喉疼痛，可能是蜂蜜的粘稠度和粘滞度使得它能够很好地发挥作用。&长期以来人们就知道缓和剂能够缓和受刺激的粘膜，因此消除引发咳嗽反射的刺激，&弗罗里达大学的药物信息和药学资源中心的副主管Paul Doering说。

According to the calculation, an extra high current density exists at the leading edge owing to the arc thermal inertia.

由于电弧的热惯性作用，阳极中心电流密度变化前沿存在着尖峰。

The keys of the design are the falbalas and metal buttons. This splendid corset presented not only a comfortable image, but also the antibiotic, cell-activating and freshening fashion.

另将苏木染出的粉紫色布料结合蕴藏现代感的黑色金属布料，马甲上衣前中心的荷叶边和金属包扣是设计的重点，期盼呈现出消炎、抗菌、活化细胞及提神作用等舒适又不失华丽的马甲风格。

According to the underground pressure theory, which takes stratum movement as key matter, the reactivating mechanical mechanism of a fault in mining floor under the action of underground pressure, and the mechanism of the interaction between pressure water and rock during the fault reactivation are studied.

根据&以岩层运动为中心&的矿山压力控制理论，研究了采场断层在矿山压力作用下活化的力学机制，以及断层活化过程中承压水和岩石相互作用的机理。

According to the underground pressure theory which takes stratum movement as key matter, the reactivating mechanical mechanism of a fault in mining floor under the action of underground pressure, and the mechanism of the interaction between pressure water and rock during the fault reactivation are studied.

基于大量的煤矿井突水案例，总结了中国煤矿井突水的一般规律及肥城煤田矿井突水的特点。根据&以岩层运动为中心&的矿山压力控制理论，研究了采场断层在矿山压力作用下活化的力学机制，以及断层活化过程中承压水和岩石相互作用的机理。

The first method is the four-phase method that is commonly used in our country and foreign countries at present.

京港澳高速公路是国家高速公路网（7918网）中的一条射线，自北向南连接北京、石家庄、郑州、武汉、长沙、广州、香港、澳门等8个中心城市，是连接华北、华中、华南的交通大动脉，是我国最早规划的高速公路干线，在国家公路网中具有十分重要的地位和作用。

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。