主要原因

Main reasons for this are owed to the thought and studied methods that are abstract and lose contact with perceptual reality.

主要原因就在于抽象的脱离感性现实的形而上的思维方法和研究方法。

Cerebral ischemia is a major cause of irreversible brain damage and subsequent loss of neuronal function.

脑缺血是脑损伤及随后神经元功能丧失的主要原因之一。

That most agree is what makes her so approachable and loveable.

这点是大部分人认为她既和蔼可亲又讨人喜爱的主要原因。

One is at low growth temperature, the origin of mound formation can be attributed to an intrinsic growth instability of a singular surface in the presence of so-called Ehrlich-Schwoebel step-edge barrier, which inhibit the downward movement of adatoms at surface step-edges. The other is at high temperature, or at low Ⅴ/Ⅲ ratio, the reason of mound formation is related to phosphorus deficiency.

其主要原因有两种，第一种是生长温度较低时，由于吸附原子受到附加的ES台阶边垒的阻碍作用，使扩散运动不能向台阶下面运动，而在台阶上面形成小丘，第二种是生长温度较高或Ⅴ/Ⅲ较低时，因生长中缺磷造成In的堆积而产生。

Stress is the main cause for your having low-energy levels.

压力是你精力不够充沛的主要原因。

In this paper, the reasons leading to poor development effects of Chaoyanggou low-permeability oilfield are analyzed, the relational expressions between recovery efficiency and well spacing density, considering the start-up pressure, are given. In the paper, the water flooding control degree, lower limit of reservoir permeability, effectively driving factor, and other parameters are studied, and their influence on the well spacing density is presented.

中文摘要：摘要：本文分析了大庆朝阳沟低渗透油田开发效果差的主要原因，给出了考虑启动压力条件下，采收率与井网密度的关系式；研究了水驱控制程度、油藏渗透率下限、有效驱动系数等参数对井网密度的影响；确定了朝阳沟油田合理井网密度界限。

The main reason is the lowness index of city environment and city virescence, no high produce efficiency and low social security etc.

主要原因是城市环境与城市绿化指标值太低、生产效率不高、社会保障程度差等。

We find two reasons that cause lowness of price of rural labor: One is reproduction cost of them is too low; the other is that supply exceeds demand in labor market.

农村劳动力的低成本和劳动力市场的供过于求是导致农民工低工资的主要原因。

There are many reasons to cause the Agriculture Eco-Economy System lower function, such as the reasonless of industry structure, excessive proportion of crop production, the lowness of productivity level, the lack of the capital and so on.

分析表明造成该区农业生态经济系统功能低下的主要原因是产业结构不合理、种植业比重过大、生产力水平低、资金缺乏等因素。

The repeatability limit and ANOVA unitary variance analysis were used to evaluate the determination. The results indicated that the physical state of steel sample had no significant influence on the accuracy of spectral analysis. The uniformity of composition distribution in lumpish sample was the main factor influencing the accuracy of spectral analysis for steel products.

试验提出采用光谱分析方法的重复性限r和ANOVA一元方差分析进行结果的分析判定，结果表明：钢样的物理状态对光谱分析准确度无显著影响；块状试样成分分布的均匀与否，是影响钢材成品的光谱分析准确度的主要原因。

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。