引起因素

However, the operative site in optical center, the influence of the operator and the equipment, make almost all patients have the different degrees of ametropia and asthenopia and influence the recovery of the vision. These questions are very difficult to solve.

但手术部位多在光学中心，加之手术人员、设备等诸多因素的影响，几乎所有患者术后均存在不同程度的屈光不正而影响视力恢复，并引起不同程度的视疲劳，一直是眼科界难以解决的问题。

So this is the main factor that causes pregnant woman anemia.

所以这是引起孕妇贫血的主要因素。

Among all the risk factors of the PONV, anesthetic is the most important one.

在引起PONV的众多原因中，麻醉是十分重要的因素。

Complex geological conditions, large dip angle of Hailaer Block and drilling tools failure are the key reasons for long well construction cycle.

海拉尔地质条件复杂，地层倾角大，是延长钻井周期的主要原因；钻具失效是引起钻井周期长的又一重要因素。

This paper analyzes from the theories and engineering examples to review rationality of the different torsion effect indexes, such as relative torsion effectθr/u, shear force ratioλbetween torsion and translation, eccentric angle of torsion.

本文从理论分析和算例考证两个方面，考查相对扭转效应θr／u、扭转与平动引起的剪力比值λ和楼层偏心扭转角α等不同扭转效应指标的合理性，研究不同指标的影响因素及它们之间的内在联系。

In contrast, anhidrotic mice did show a reduction in membrane AQP5 expression in sweat glands after topiramate delivery. To our best knowledge, the present study is the largest sample-size clinical investigation concerning topiramate induced-hypohidrosis.

本课题组首次对托吡酯引起泌汗障碍的发生率及影响因素进行大规模、大范围的系统流行病学调查分析，并首先建立了实用可靠的动物模型，对这种不良反应的发生机制进行动物实验研究。

Objective To investigate the difference between the actual figure and theoretic figure of aniseikonia in anisometropic amblyopia patients; examine the stereoacuity of anisometropic amblyopia patients and ametropic amblyopia patients, and analysis the related factors, to give guideline for the treatment of anisometropic amblyopia patients.

目的 研究屈光参差性弱视患者的不等像值与理论值(0.25D的屈光参差引起0.5%的不等像)之间的差异及其规律；检查屈光参差性弱视及屈光不正性弱视患者的立体视锐度，分析其影响因素，为矫正屈光参差、治疗屈光参差性弱视提供依据。

Analysis suggests that errors are mainly caused by approximate computation and the value of contacted resistance adopted.

误差产生的主要原因是计算过程中的近似和短路片接触电阻的取值，其中短路片接触电阻是一个重要因素，在设计腔体时应引起足够的重视。

We analyze factors that cause the error during the process ofstraightening drill pipes and work out the approximate value of straightening error.

对引起钻杆校直误差的因素进行了分析，并对系统的校直误差进行了估算。

Arbour said the current food crisis stems from several factors including distortions in supply and demand and unfair trade policies .

阿布尔女士指出，目前的粮食危机是好几个因素引起的，其中包括供需失调和贸易政策不公平。

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。