决定因素

Gametogenesis in many kinds of insects, lower vertebrate animals and hibernating animals as well as scrotal mammals depends on a suitable low-temperature condition to generate germ cells and acquire maturation competence thereafter.

通过漫长的进化历程，不同的生物以不同的外界因素作为主要的信息，结合自身内在的节律，决定生殖细胞的发生、成熟和繁殖后代的时序，从而形成一定的生殖周期。

With the development periods, the month s, the affection of the environment and genetical factors on the total flavonoids.

目的 研究短葶飞蓬总黄酮含量与生长发育和月份变化的关系，环境与遗传因素对总黄酮含量的决定作用。

We are genetically programmed to store fat, she said.

脂肪的储存是由遗传因素决定的。

The efficiency of gird source management and task scheduling is an important factor for the success of grid computing.

在网格系统中，如何有效地进行资源管理和任务调度是决定网格计算是否成功的重要因素。

Neurons and glia in the embryonic, neonatal and adult brain.

神经干细胞是自我复制还是分化成为功能细胞，主要由其自身基因状态和外在环境因素所决定。

Outfit manufacturing supplies various kinds of outfit to industries. It is absolutely necessary for industrializing, and provides a foundation to integration national power. Its level is an important mark of international competition power, and a key factor which affects the status of a country in globosity economy.

装备制造业为国民经济各部门的生产提供装备，是国家实现工业化的必备条件，是支撑国家综合国力的重要基石，其发展水平是国家的国际竞争力的重要标志，是决定国家在经济全球化进程中国际分工地位的关键因素。

The effect of different reaction conditions,such as catalyst concentration,molar ratio of reactants,reaction temperature,reaction time,on the coupling reaction of trioxane and methyl formate synthesizing methyl glycolate and methyl methoxy acetate using sulfuric acid as catalyst has been studied.Through the analysis for the yield of products and system pressure,and comparison with other different acidity catalysts,we considered that the activation of formaldehyde was the control step of reaction rate to the...

以硫酸为催化剂，研究了三聚甲醛与甲酸甲酯偶联合成乙醇酸甲酯和甲氧基乙酸甲酯的反应中，催化剂浓度、原料配比、反应温度、反应时间等条件对反应过程的影响，通过对产物收率和系统压力变化的分析，并结合与其它不同酸强度催化剂的对比，得到甲醛的活化是偶联反应的速率控制步骤，催化剂的酸强度决定其对甲醛的活化能力，是影响偶联反应的主要因素。

In the case of oil, as Daniel Gros of the Centre for European Policy Studies pointed out in the Financial Times last week (this page, July 10), speculation is inherent in deciding whether to produce.

谈到石油，欧洲政策研究中心(Centre for European Policy Studies)的丹尼尔？格罗斯最近在英国《金融时报》上撰文指出，在决定是否生产的时候就已经存在投机因素。

Although Shanghai had become an industry centre in 1930's, the high rent for ground, high commodity prices and high wages made industry have to be moved to other places.

到本世纪30年代，上海已发展成为全国的工业中心，但上海的地皮贵，物价高，工资高，这就决定了上海工业的工资成本重，在经济规律的作用下，上海的工业便向其周边地区作梯度转移，苏南地区由于运输成本、工资成本都明显地低于上海，更加水源清洁等客观因素，使得苏南地区成为上海工业作梯度转移的首选地区，形成了以常州、无锡、苏州为中心的新的工业区，现代工业在苏南大地崛起了。

It is a new topic that rule of ground movement in deep dip angle coal seam mining, the coal seam angle is one of important factor of deciding the rule of ground movement , the overlying rock of steep coal seam mining have different homogeneousness in horizontal orientation.

倾斜煤层是指煤层倾角在15°—55°之间的煤层，倾斜煤层开采地表沉陷移动规律是地表沉陷研究领域中的一个重要组成部分，煤系地层倾角是决定上覆岩层的移动和破坏形式及地表移动与变形程度的重要因素之一。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。