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The viewpoints of philosophy and methods of dialectics of nature play an important role in science researches.

自然辩证法的若干思想在科学研究中起着重要作用。

Health education and discharge instructions play a certain role in the recovery of the children with chronic diarrheal disease,and it should be carried on in clinical practices.

健康教育及出院指导在慢性腹泻病患儿的恢复中有一定的作用，在临床工作中值得推广应用；健康教育形式应多样化，其模式和评价方法有待进一步完善。

Many differentially expressed genes related to signal transduction play a role in the development of bladder transitional cell carcinoma.

膀胱肿瘤的发生与发展与多种细胞信号转导相关基因的异常表达有关。

The direction of luminiferous evacuation indicator is fixed in complex fire accident scene,that is difficult to play safe and effective role in the evacuation instructions.

发光型疏散指示牌的指引方向固定不变，在复杂的火灾事故现场难于起到安全有效的疏散指示作用。

With disaggregate industrial data of Chinese provinces from 1990 to 1997, we find that the trend of the core-periphery pattern in regional industrial growth has been strengthened, but historical locations only play a minor role.

我们基于1990-1997年中国省区细分产业数据的研究发现，中国地区产业增长的"中心－外围"趋势加强，但历史产业布局的影响居次要地位。

RESULTS: Stent materials play an important role in reducing inflammatory reaction and restenosis following stent implantation. As a medical material for humans, the features of stent should be meet the requirements of reliable distensibility, mechanical persistence, good flexibility and geometrical stability, possible small diameter, excellent blood compatibility, as well as good corrosion resistance. All of these depended on the mechanical and physical features of materials.

结果：支架材料的选择在减少机体炎症反应的强度和持续时间，减少支架置入后血管内再狭窄的发生起着重要的作用，作为人体医用材料，对支架各方面性能都提出了很高的要求，包括可靠的扩张性和力学持久性、良好的柔韧性和几何稳定性、尽可能小的外径，优异的血液相容性和耐蚀性，而支架上述特性都依赖于材料的力学和物理特性。

According to available data, it seems that the HIV virus, antibodies play a role in bypassing the key effect of divalent ---.

根据掌握的数据，似乎HIV病毒绕开了抗体发挥作用的关键———二价效应。

With the development of domestic market economy, enterprises play a more and more important role in it.

随着我国市场经济的发展，企业在市场经济发展中扮演着极其重要的角色。

That surely wasn't Audi's intent (manufacturer's generally like to beat other manufacturers), but it did play a role in the success of the car in its dotage.

这显然不是奥迪的意图，但显然对手的孱弱在奥迪的统治中占有重要因素。

Hong Kong, which used to play a dragonhead role in the region as a major capital source and service provider, shows signs of decline in the context of new regional development.

自1970年代后期，港珠关系经历了质变。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。