在...起作用

Not all identity of ethnic group have essential factor, different identity essential factor in a concrete race group.

在每一个族群的认同中并非都具备所有的族群(来源：A7646BC论文网www.abclunwen.com)认同要素，而不同的认同要素在具体的一个族群的认同中起的作用也各不相同，族群认同具有多样性。

During the auto-control mixing,the parameters of the mixing process,such as rotor speed,filling factor,ram pressure and mix temperature have effect on the mix quality;and the effect of some parameters can be decreased by using instantaneous power control.

瞬时功率控制实质上是对混炼物料粘度的控制。1 瞬时功率控制分析粒状填料能否均匀分散在橡胶中虽然与填料粒子的大小、形状和表面状态有很大关系，但起决定作用的仍然是橡胶的粘度。橡胶粘度太大或太小对粒状填料在橡胶中的分散都不利。

But the development of people built bridge and ferry have limitation owning to short of institutional indemnificatory.And even though government don't be in the primary status,but it played a role as advocator,leader and supervisor in the local society.

但是民修津梁的发展缺乏制度的保障，存在很多缺陷，而官府在地方津梁修建中虽然不占主导地位，但是官府在各地也起了很重要的提倡、引导和监督、管理作用。

We identified that in vitro ASM promotes fibrocyte chemotaxis and chemokinesis (distance of migration after 4.5 hours, 31 mum [2.9 mum] vs 17 mum [2.4 mum], P =.0001), which was in part mediated by platelet-derived growth factor (mean inhibition by neutralizing antibody, 16% [95% CI, 2% to 32%], P =.03) but not by activation of chemokine receptors.

该研究首次证明：在哮喘中，成纤维细胞存在于哮喘患者气道平滑肌间隔，并可以促进纤维细胞迁移。成纤维细胞在哮喘患者气道平滑肌增生及气道功能障碍过程的所起的作用仍有待研究。

But during the years of reform and opening and market competition,national foodstuff corporations accumulate many problems and are faced with flinty challenge from survive and development.

流通环节的国有粮食企业，一直在国家对粮食的宏观调控中起着重要作用，然而在多年的改革开放与市场竞争中，国有粮食企业积累了很多问题，面临着生存与发展的严峻挑战。

Whose function transits gradually from the original flood and field relay to the synthetical logistics centre promoting economic growth and serving in international trade.

现代物流业在我国的兴起是对传统物流业的一场革命。现代物流业在推动国民经济发展方面起着巨大的作用，因此被广泛称为是"第三利润源泉"，是本世纪新的经济增长点。

The fact that former striker Daniel Fonseca is Muslera's agent has helped, and Lazio and Nacional are close to agreeing a fee.

前乌拉圭著名前锋丰塞卡在这里起了重要作用，拉齐奥和民族队在费用即将达成一致。

The main results are as follows:We review the existing Monte Carlo control variates estimators of the price of Asian options and propose a new one. According to pratical needs, we define efficiency as the inverse of the product of the variance of an estimator and its computational time and make it a standard for comparisons to draw the following conclusions: Firstly, the more control variates correlate with arithmetic average Asian options, the larger is the efficiency of an estimator with these control variates, but among which the geometric average option plays the most important role; Secondly, an estimator with more control variates is better than one with less ones only when the time to maturity is long and the volatility is high.

在综合已有研究工作的基础上，本论文的主要创新成果如下：（1）我们回顾了已有的亚洲期权价格的蒙特卡罗控制变量估计，并提出了一个新的控制变量估计，且从客观实际出发，将估计值的方差和计算时间的乘积的倒数定义为效率并以它为标准比较各估计，得到以下结论：与算术平均亚洲期权相关程度越大的控制变量构成的估计的效率越大，而其中起主要作用的控制变量为几何平均亚洲期权的价格；只有在到期时间较长且标的资产的波动率较大时，元素多的多元控制变量估计比元素少的效率大。

In the middle of the Christmas holidays, two American marines allegedly had raped a Chinese girl on the glacis outside the old Legation Quarter, and this deed had been enough to set aflame the already exacerbated national feelings of thousands of students then gathered in Peiping.

在圣诞节假期间，据说两个美国海军陆战队的士兵在东交民巷外面的操场上强奸了一个中国姑娘。北平成千上万大学生的民族情绪本来就很高昂，这个事件起了火上加油的作用。

Similarities in morphology, element ingredient and element content between otoliths in the lagena and those in the utricule suggest that the two types of otolithic organs may play a similar role in sensing gravitational and acceleration signals.

信鸽瓶状囊的耳石与椭圆囊的耳石在形态、元素组成及含量水平上具有相似性，提示这两种耳石器官可能在感受重力和加速度信号中起相似的作用。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。