主要原因

Anemia is a leading cause of fatigue in women.

贫血是女性疲劳的主要原因。

Iron deficiency is the most common cause of anemia.

人体缺乏铁质是贫血的主要原因。

90Ma. The variance of dip angle of subduction slab was caused by the velocity change of subduction slab.

造成俯冲板块倾角随时间变大的主要原因是板块俯冲速度减小。

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。

The results show that the reinforcement on the plate angle is not sufficient concrete pouring is not even, early removal of mould is the main cause of cracks.

结果表明，板角部负筋配筋量不足、混凝土浇注不均匀、拆模过早是裂缝产生的主要原因。

The angular velocity of the line of sight and the lead speed of the missile.

找出了引起不对称现象的两个主要原因——视线旋转角速度和导弹的前置速度。

By analyzing the differences between acidic and basic catalytic action in this transesterificatios, it is considered that the main cause of yielding an anisole by-product is due to the basic catalysis, a Lewis acidic catalyst is helpful for the selective DPC formation.

通过分析酸碱催化作用在酯交换反应中的差异，认为碱催化是副产物苯甲醚生成的主要原因，Lewis酸性的催化剂有利于碳酸二苯酯的高选择性。

ABSTRACT Purpose It is well known that anisometropia is one of the main reasons that affect children's stereoscopic vision and result in ...

目的 屈光参差是影响儿童立体视发育及形成弱视的主要原因之一。

ABSTRACT Purpose It is well known that anisometropia is one of the main reasons that affect children's stereoscopic vision and result in amblyopia.

目的 屈光参差是影响儿童立体视发育及形成弱视的主要原因之一。

The important causes affecting monocular operation to recover binocular vision are the low vision of the another cataract eye,vision difference between both eye and anisometropia.

影响单眼手术患者双眼视功能恢复的主要原因是另侧非手术眼的白内障所导致的视力低下和两眼屈光参差。

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。