主要原因

In addition, because of the inhere defects of the IP network, a lot of devices and bandwidth of the network can not be used sufficiently. That is one of the main reasons for network congestion.

另外，由于传统IP网络的固有缺点，使许多网络带宽和网络设备没有得到充分的利用，这也是造成网络拥塞的一个主要原因。

The inaccuracy of the initial condition and the inaccuracy of the numerical weather forecast model ...

初值条件的不准确和数值预报模式的不准确，是造成预报结果误差的两个主要原因。

This paper analyzes that the main reason of low injectivity of water injection wells is that the Sr 2+ in formation water reacts with the SO 4 2- in the Yellow River water to produce precipitate of BaSO 4 when the Yellow River water mixes with formation water.

该文分析了胜坨油田注水井吸水能力降低的主要原因是黄河水与地层污水混注时，地层水中的Sr2＋、Ba2＋与黄河水中的SO2－4反应生成BaSO4、SrSO4沉淀。

The differences of providing amino acid to kernel of different winter wheatculfivars.93-52 with high protein content in kernel had highest content of amino acid innutrition organs,indicated 93-52 can provide abundance material for protein synthesis ofkernel,namely the source in full,so the content of amino acid in kernel was highest;Compared Lumai21 with Jinanl7,the amino acid content in leaf of Lumai21 was a littlehigher than Jinan17,but the amino acid content in stem、sheath and spike was obviouslylower than Jinan17,also the amount of amino acid restored in nutrition organs was large,the translocation degree was low to kernel,namely the flow was not fluency,which wasthe main reason of low content of amino acid in kernel.

小麦不同品种向籽粒供应氨基酸水平的差异。籽粒蛋白质含量高的93-52各营养器官中的游离氨基酸含量均最高，说明93-52籽粒蛋白质合成所需底物供应充足，即源足，因而其籽粒游离氨基酸含量最高。鲁麦21和济南17相比，鲁麦21叶片中的游离氨基酸含量虽略高于济南17，但茎鞘和穗中的游离氨基酸含量却明显比济南17低，并且在后期鲁麦21营养器官中游离氨基酸滞留的多，向籽粒中的转移程度低，即流不畅，是造成鲁麦21籽粒游离氨基酸含量低的主要原因之一。

The main reason is that the condition ismore complicated in open field,and measuring result is much more easily influenced bysome kinds of clutters,like atmosphere attenuation,cloud or fog,the fluctuating of scaleobject and ground clutter and so on.So these factors should be taken into account inpractical measuring,and make some amending processing.

主要原因是外场中情况复杂，测量结果受各种杂波影响较大，如大气衰减、云或雾、定标金属球的波动、地面杂波等，因此在实际测量中应考虑这些因素，并做出相应的修正处理。

The main reason is that the capital supported is insufficiently, especially venture capital is not enough among it.

导致这一结果的主要原因是资本支持不足，尤其是其中重要的资金来源——风险投资的支持力度不够。

The influences of the shape of intake port and offset of valve on the characteristics of flow field and swirl ratio were analyzed.

计算表明：螺旋气道斜坡段产生的气流角动量是气流在气缸内形成旋流的主要原因。

Interbreeding and natural mutation accumulation may be major factors in genetic variation among the hybrid and parents.

自然变异的累积和天然异交可能是导致SC704及其亲本遗传变异的主要原因。

The members of the CYP3A subfamily demonstrate greater inter-individual and interethnic variations in humans. Genetic polymorphism is the common cause of inter-individual and interethnic differences in the metabolism of the same substrate.

遗传多态性是引起个体间和种族间对同一底物代谢能力不同的主要原因之一，这种突变影响了临床疗效和用药安全，比如治疗精神分裂症、心血管疾病、高血压以及癌症等。

The different surface states of different carbon fibers result in different interfacial micro-structures and mechanical properties of the composites.

碳纤维表面状态的差异是纤维与基体的结合强弱以及复合材料力学性能不同的主要原因。

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。