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An iron and vitamin B12 deficiency occurs more than 30% of the time leading to anemia.

铁和维生素B12缺乏时的30 ％以上的时间，导致贫血。

Our work may help explain how aneuploidy occurs in humans, and why the risk for the condition increases with a mother's age.

我们的工作可能有助于解释为什么人类发生非整倍体，为什么风险随母亲的年龄而增大。

The method which is used to measure and compute moment, yield and turning angle by steel bar gauge is introduced in detail. According to the measuring results, the horizontal critical load of the testing pile is 120 kN. The steel bar gauge measuring results show that the largest moment is located in the depth from 2 m to 3 m under the horizontal load, it transfers to the deeper location with the increase of the horizontal load, and the bend distortion only occurs in the upper of 1/3 pile length.

结合实际工程详细地介绍了利用钢筋计测试水平荷载作用下桩身弯矩、挠度和转角分布的方法，根据桩顶位移和钢筋内力测试结果判定试验桩的水平临界荷载为120 kN；根据钢筋计测试结果可知，在水平荷载作用下，桩身最大弯矩截面位于在地面以下2～3 m处，且随着荷载的增大最大弯矩截面逐渐向深部转移；发生弯曲变形的部分主要是桩长1/3以上的桩体，而其下的桩体几乎不发生变形。

This occurs at one angle of attack for the same wing loading of a paraglider.

这种情形会发生於飞行伞的翼负载相当於攻角时。

Glycogen: A polysaccharide,(C6H 10O 5) n, that is the main form of carbohydrate storage in animals and occurs primarily in the liver and muscle tissue. It is readily converted to glucose as needed by the body to satisfy its energy needs. Also called animal starch

肝糖：糖原，(C6H 10O 5) n，构成碳水化合物贮存在动物体组织中的主要形式，主要存在于肝和肌肉，可备来转化成葡萄糖以补充身体所需能量也作 animal starch

An annular eclipse occurs instead of a total eclipse when the Moon is on the far part of its elliptical orbit around the Earth.

而发生日环食而不是日全食的是因为月亮运行到距离地球较远的轨道上，于是月亮的本影只能遮到太阳的中心。

An annular eclipse occurs when the moon does not cover the entire disc of the sun so that a ring of light encircles the shadow of the moon.

当月亮没有覆盖住太阳的整个光盘时发生日环食，出现一个光圈围绕住月亮的阴影。

Based on the possible degradation products, Microbial degradation pathways of metsulfuron-methyl is concluded as follows: after the cleavage of the sulfonylurea bridge, 2-amino-4-methoxy-6-methyl-triazine is demethylated and the annularity reaction of sulphanilamide occurs.

甲磺隆主要降解途径首先是脲桥的断裂，然后6-甲氧基-4-甲基-2-氨基-三氮嗪进一步脱甲基，而磺酰胺类物质将进一步脱氨基环化。

This occurs naturally .Further protection can be done by applying paint or an anodize finish.

如果经过表面处理（阳极氧化、电泳涂漆、喷涂等），可大大提高铝材的抗腐能力。

The measurements display that there occurs three dimensional anomalous expansion in two deferent phases at temperature corresponding to lattice softness.

另外，我们进行了Bi系高温相和Bi系低温相的晶格参数随温度变化行为的比较研究，发现了在对应于出现晶格软化效应的温区上出现了晶格的三维反常膨胀。

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。