主要原因

The neglect of edge diffraction is one of the most important reasons.

这种方法在低频情况下的精度较差，主要原因是忽略了在低频声场中起重要作用的波动现象。

The results reveal that domestic sewage and rural diffused pollution are the main causes of water pollution.

分析结果表明：点源污染、农村面源污染是中小城镇水体污染的主要原因。

It suggests that this could be the main reason for lower ratio of digestibility and metabolism of roughage.

这可能是造成粗饲料消化代谢率低的主要原因。

The result shows that the main reasons of deformation failures in deep roadways are 1 highly relying on the piling up of several support styles, and 2 ignoring the coupling between support and surrounding rock or the couplings among different supports. This is because massive deformation energy is accumulated in surrounding rock, which is induced by high stress and soft rock dilatability.

结果表明，在深部高地应力及软岩膨胀性作用力的影响下，巷道围岩内部积聚了大量的变形能量，单纯依靠多种支护形式的叠加，而不注重支护体与围岩之间以及支护体之间的耦合是巷道失稳的主要原因。

First of all, is the moral dimension of their own.

笔者以为，这是狄更斯对监狱的描写取得成功的主要原因之一。

Dialkylmethylamine was produced through the reaction of fatty alcohol with methylamine as one of the products of dimethylamine disproportionation.

通过对月桂醇和二甲胺进行胺化反应过程中气相成份的分析，证实了在脂肪醇和二甲胺胺化反应体系中存在二甲胺歧化为甲胺和三甲胺的反应，二甲胺歧化反应生成的甲胺和脂肪醇进行反应是副产物双长链烷基甲基叔胺生成的主要原因。

Which are the major diseases, the major causes of death, handicap, disability and diminution of the quality of life?

哪些是重大疾病，哪些是造成死亡、残废、残疾和生活质量变差的主要原因？

This is a picture to color mode from RGB to CMYK are dimmed when.

这也是把图片色彩模式从RGB转化到CMYK时画面会变暗的主要原因。

Years ago, diphtheria was one of the leading causes of death among children.

许多年前，白喉是造成儿童死亡的主要原因之一。

Arrive from the enterprise government, more and more origanization construction regard individual and organization as to be opposite internally gregarious network diplomatic shedding and collective channel.

利用ActiveX控件进行攻击是最常见的攻击手段，根据赛门铁克的数据，仅去年上半年，就发现了210个ActiveX漏洞，这是IE成为常见攻击目标的主要原因。

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。