主要原因

The polecats were not sensitive to variable food under starvation conditions. This was due to the fact that the polecats had low levels of energy metabolism and they conserved energy by decreasing their activity to increase their survival under starvation conditions.

产生这种结果的主要原因可能是艾虎的能量代谢水平较低，在食物受到限制时主要采用降低活动使单位活动时间内所获得的能量值达到最大的取食对策增加自身的存活机率。

The major risk factors included multiple previous pregnancies and abortion、delivery out of hospital and pre-eclampsia .

结果：产科失血性休克的发生率为0.65%，胎盘因素是失血性休克的主要原因；主要的危险因素是多次妊娠和流产、院外分娩及重度子痫前期。

But, want from go up at all solve this one problem, the healthy standard of stimulative developing zone develops, still must be in understand the main reason that at present the main show of phenomenon of developing zone overheat reachs his to arise adequately.

但是，要想从根本上解决这一问题，促进开发区的健康规范发展，还必须在充分认识目前开发区过热现象的主要表现及其产生的主要原因。

Growth of the main reasons:(1), the company the current market better products;(2) main production unit and stable operation.

增长的主要原因：（1），该公司目前的市场更好的产品；（2）主要生产装置稳定运行。

The main reasons for growth, the company marketing the current product is better, the main production unit and stable operation.

增长的主要原因，该公司目前的产品营销更好，主要生产装置稳定运行。

The main reasons of traverse survey overlimit in the view of objective factors and subjective factors are analyzed and relative approaches based on engineering cases is proposed.

导线测量在水利水电工程控制测量中应用极为广泛，从影响导线测量的客观因素和主观因素结合并根据实际情况综合分析导线测量成果超限的主要原因，并根据测量科学理论知识和工作经验相结合，提出了应采取的主要措施

Based on the principle of molecular emission in hydrogen flame,sulphur-containing and phosphorus-containing substances in solutions were determined directly using self-made apparatus.

1前言硫化合物如甲硫醚等是造成环境水体中恶臭污染的主要原因之一[1]，同样磷是有机磷农药、磷肥的主要成分，也是环境水质监测中的重要元素。

Organic fouling was the main reason which induced the decrease of membrane flux of C/MF process with ferric salt as a coagulant. Irreversible membrane fouling of C/MF process with aluminium sulphate as a coagulant was much severe and was the main component of membrane fouling.

膜阻力计算结果表明，无机污染阻力所占比例很小，有机污染是铁盐混凝微滤工艺膜比通量下降的主要原因，铝盐工艺的不可逆污染较为严重，是膜污染的主要组成部分。

The main formation causes of storm current are convergence of tidal current and special topography and the strength of storm current depends mainly on the released disordered potential energy .

对滦河口近海激流的形成进行了讨论，认为潮流的辐合和特殊的地形是激流形成的主要原因，而激流的大小则主要取决于无序位能的释放量。

Steam pipe line as one of the main facilities which is used in the steam line system of the thermal production ,the main reason for the decline of well head steam quality, the key factor of the decreasing energy efficiency .

输汽管道作为热采输汽系统的主要设备之一，是井口蒸汽干度降低的主要原因，也是降低能量利用率的重要因素。

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。