There is no simple or single factor that determines if a given site will be a savanna, but some factors seem to play important roles in their formation.
没有什么简单或单一的因素能决定一个给定的地点是否会成为热带草原，但部分因素似乎在热带草原的形成中扮演着重要的角色。
I think it is still unclear whether black holes play any role in the formation of the first galaxies.
我认为到底黑洞在最初的星系形成过程中扮演什么样的角色，这仍然是不清楚的。
Supernova remnants play an important role in stellar evolution by enriching space with heavy elements, and triggering new star formation by compressing interstellar gas.
超新星残骸以重元素填充宇宙空间，压缩星际气体促进新恒星的形成，因而在星体演化过程中扮演重要角色。
The hippocampuses (there are two, one in each hemisphere of the brain) play a central role in memory formation, and also in the ability to navigate.
海马体（有两个，分属左右半脑）在记忆形式上起决定性作用，而且负责空间的定位。
Not all frozen waterfalls are natural, though wind, weather and temperature play a large part in their formation.
虽然自然中的气候如风，温度对冰瀑的产生具有很强的诱导作用，但是并不一定所有的冰瀑都是自然景观。
The formation of play stage esthetic image needs the artistic inspiration, the Chinese and foreigners have had many kinds of viewpoints about the inspiration.
戏剧舞台审美意象的形成需要艺术灵感，一直以来，中外关于灵感有多种观点。
Recommendation: Although the midfield remains Milans greatest strength, if you plan to play with 3 CMs in your formation, making one more purchase is required.
推荐：尽管中场仍然是米兰最强大的一环，但如果你打算采用3 CM的阵型，你还需要一个收购。
The results show that trace elements play an role in the formation of longevity.
结果表明，微量元素在长寿形成的过程中起着极为重要的作用。
Tne binary interactions play an important role in the formation and shaping of planetary nebulae (PNe).
在行星状星云形成过程中双星起着非常重要的作用。
Interior decoration materials play an important role in the fire formation and spread.
室内装修材料对火灾的形成及扩展有重要的作用。
Many signaling pathways play important roles in the formation of mesoderm and patterning of the neuroectoderm during early development of vertebrate embryos.
在脊椎动物胚胎的早期发育中，多种信号途径对中胚层形成和神经外胚层分化起着重要的调节作用。
The analysis indicates that the conditions of second derivative of the above relevant factors play an important role in the formation of great circle route.
本文研究表明，上述影响因素的二阶经向变率的存在条件对于“大圆路径”形成起了重要作用。
Conclusion The expression of BMP-2 in CF might play an important role in the formation of cementicle or cementoid substance.
结论BMP-2在CF中的表达可能与牙骨质小体及牙骨质样物质的形成有关。
Conclusion SP may play an important role in the formation of pathological scars by modulating the expression of apoptosis-associated genes, which is mediated by SP receptor.
结论SP通过调控成纤维细胞凋亡相关基因的表达参与病理性瘢痕形成，该作用由SP受体介导。
Fractional crystallization and assimilation constrain lithological composition and fraction, and play a key role in the formation of intrusive complex.
结晶分异和同化混染是侵入岩体形成过程中控制岩相成分和分异程度的主导因素。
Conclusion mouse retina contains high amount of free zinc ions which might play important roles in the visual message transduction and formation in the mouse retina.
结论小鼠视网膜内锌离子，在视网膜神经元视觉信息的传导和形成过程中可能起着重要作用。
The analysis indicates that the theory of semantic fields can play two roles in the formation of a text, the roles of achieving cohesion and coherence and rhetoric embellishment.
分析结果表明，语义场理论在语篇形成中可以起到两大作用：衔接连贯作用和修辞润色作用。
TV sports programs play a role in promoting the formation of sports health view of urban residents as well as the willingness, contents and times of their participation in sports activities.
电视体育节目对城市居民体育健康观形成及参与体育活动的意愿、内容、时间有促进作用。
It is shown from the analysis of formation mechanism that the pressure gradient force, vertically frictional force and Coriolis force play the leading roles in forming the YSWC.
对黄海暖流形成机理的分析表明，压强梯度力、垂向摩擦力和柯氏力占主要地位。
Therefore, fine mapping and cloning the genes controlling starch viscosity would undoublely play important roles in improving and underlying the formation mechanisms of rice quality.
定位和克隆控制稻米粘滞性的基因对于了解稻米品质的形成及其改良具有重要意义。
We found that the noise can play an important role in the formation of the order spatiotemporal construction in nonlinear systems.
研究表明，噪声在非线性体系形成时空有序结构的过程中能起到非常重要的积极作用。
The use of phenomenological theoretical results, from the phenomenological point of view to explore the "true nature" and "creative" in play in the process of formation mechanism.
运用现象学的理论成果，从现象学的角度出发，探究“忠实性”与“创造性”在演奏过程中的生成机制。
CONCLUSION: LIM mineralization protein - 1 May play a crucial role in the mineralization of dentin formation.
结论：LIM矿化蛋白1可能在人牙本质矿化过程中发挥一定的作用。
You must play a narrow formation, with high tempo, direct passing to get the ball up the pitch and away from your goal as quickly as you can.
你必须采用窄阵型，高节奏，能多快就多块的直传向前和解围。
The microorganism and bacteria play a subtle role in the uranium deposit formation.
微生物和细菌在铀矿形成过程中也起到一定的作用。
As the typical forms of the figures, metaphor and metonymy play an important role in the formation of the meaning.
隐喻和换喻作为修辞的典型形式，在意义的形成过程中发挥着重要作用。
We see design as processes located in individuals and groups, shaped by the formation and experience of each individual and by the characteristics of the groups that play a role in the design process.
我们把设计定位为个人或小组的过程，过程的形成都与其个人的构成、经历和小组所扮演的角色特性有关。
These transform fault series play an important role in the formation and the geological evolution of the Southeastern China continental margin basins and the tectonic-structural zones.
这些转换断层系统对中国大陆东、南缘含油气盆地和边缘构造带的形成和地质演化起着重要的作用。
These transform fault series play an important role in the formation and the geological evolution of the Southeastern China continental margin basins and the tectonic-structural zones.
这些转换断层系统对中国大陆东、南缘含油气盆地和边缘构造带的形成和地质演化起着重要的作用。
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