查询词典 D.A.

Vitamin D deficiency rickets is a common disease in pediatrics with unbalance between calcium and phosphorus metabolism resulting from deficience of vitamin D in children body,which was characterized by the pathological changes of skeleton due to abnomal calcification of the growing osteoepiphysic cartilage plate.

小儿维生素D缺乏性佝偻病是是儿科常见病，其由于儿童体内维生素D不足致使钙磷代谢失常，以正在生长的骨骺端软骨板不能正常钙化，造成骨骼病变为特征。

Like Sony, like fashion, sound like the best option, which is produced by Sony intentions of a product, coupled with the listing of its inexpensive price, it can be said that Sony is the most "value"一款DISCMAN, quality and function have increased dramatically, and joined the multi-language menu, the key is Simplified Chinese support, coupled with Sony branded "CD20 anniversary edition," they believe that the D-NE20 DISCMAN will be the dominant product on the market, if Sony D-NE20 in DISCMAN is on the market for the emancipation of this phrase has been no statement, It'sSONY!

喜欢SONY、喜欢时尚、喜欢音质的最佳选择，这是SONY用心制作的一款产品，加上其不贵的上市价，可以说是SONY目前最"值"的一款DISCMAN，音质与功能都有大幅提升，而且加入了多国语言菜单，关键是对简体中文的支持，加上SONY打上"CD20周年纪念版"的旗号，相信D-NE20将是DISCMAN市场上的主导产品，如果说D-NE20是SONY在DISCMAN市场上的翻身之作，这句话也毫无言过

This paper reviews the electronic structures of excited state and metal-metal interaction of a series of d^8 and d^10 complexes.

通过对一系列d^8和d^10配合物的激发态电子结构和电子激发前后金属相互作用的理论研究进行了评述。

This model indicates that the sulfur isotopes, whose values tend to be negative fractionate to a large scale because of the reductive process of dissimilating bacteria of sulfate.

根据内蒙古乌达矿区高硫煤9煤层（有机硫同位素值 d 34 S=－12.3‰~5.8‰，黄铁矿硫同位素值 d 34 S=－18.7‰~1.1‰）和低硫煤13煤层（有机硫同位素值 d 34 S 为8.9‰~ 11.5‰，黄铁矿硫同位素值 d 34 S 为8.3‰~ 9.7‰）剖面上有机硫和黄铁矿硫同位素的组成，结合煤岩学特征的综合分析以及黄铁矿化菌落和蓝藻胶壳的发现，提出了高硫煤中硫的演化模式，认为高硫煤中硫的同位素由于硫酸盐的异化细菌还原作用导致硫同位素大规模分馏，使之趋于负值。

For spheres with constant diameter D, the grading modulus G and the specific surface of a sphere are identical, that is, G =(πD2)/(πD3/6)= 6/D.

那些集料颗粒。对于直径 D 恒定的球体，级配模量 G 和球体的比表面是同一的，即 G =(πD2)/(πD3/6)= 6/D。

Glyceraldehyde has a single asymm- etric carbon atom﹙the central one﹚ and so two stereoisomer﹙also called optical isomer﹚ are possible, that is two forms of glyceraldehyde, denoted as D- and L-glyceraldehyde, which are mirror images of each other

D-葡萄糖碳原子键合C-5的羟基和氢原子的位置与D-甘油醛相同称为D-型，同样L-型的甘油醛衍生出来的单糖称为L-型糖。

. Hydroxylated vitamin D-3 is then transported to the kidney, where a second hydroxylation occurs, and 1,252 vitamin D-3 is formed.

羟基维生素D - 3，然后运到肾脏，在第二个羟基发生，1，252的维生素D - 3形成。

While deficiency of vitamin D impacts health negatively, ingestion of extremely high doses of vitamin D can cause hypercalcemia, a condition in which the blood's calcium level is above normal.

虽然缺乏维生素D的健康产生不利的影响，摄取的极其高剂量的维生素D可导致高钙血症，一个条件，其中血液的钙水平高于正常。

By extending the concepts of supremum and infimum in real space to the casein any finite-dimensional Euclidean space a weak supremum set and infimumset theory with respect to cones for the set in finite-dimensional Euclideanspace is developed,and several similar properties to the set in real space are ob-tained,with the concepts of this weak supremumset,w-D-conjugate maps and w-D-subdifferentials theory for the point-to-setmap are developed,and its several properties and its relationships with weakefficient solutions of the multiobjective programming are studied.

推广实空间中上、下确界的概念至任意有限维欧氏空间，建立了有限维欧氏空间中集合的锥弱上、下确界集理论，得到了与实空间中十分相似的性质。借助于这一理论，应用上、下确界的概念，给出了点集映象的w-D-共轭映象及w-D-次微分理论，并研究了它们的若干特性及其与弱有效解之间的关系，此外还讨论了弱鞍点问题。

Firstly, we give a basic notion and basic theory of C-D pair and C-D integrable system and then we study their applications.

首先给出了C-D对和C-D可积系统的基本理论，然后是具体研究了它们的应用。

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。