查询词典 evolution

According to the theory of evolution , all species descended from earlier, ancestral species.

根据演化的理论，所有物种都是从早期的。

First is a brief introduction of the digital circuit development and evolution.

首先简要的介绍了数字电路的发展和演变。

Besides, the physiological significance of androecium or gynoecium abortion was discussed. In the evolution of long period of time, the aborted androecium or gynoecium "scrap" could be used by the same flower to offer energy and substance for flower development.

另外，探讨了雌蕊或雄蕊败育的生理意义，在长期的进化中，败育的雌蕊或雄蕊"废物"重新被利用，为同一花中迅速发育的雌蕊或雄蕊提供能量和物质的需求。

Gaze at the vivid yellows, blues, and psychedelic swirls of a single emperor angelfish and you'll sense the whimsy of evolution.

瞧瞧那"皇帝神仙鱼"身上鲜艳的黄与蓝，还有迷幻般的漩涡，你就能感受到生物进化的无奇不有了。

Submitted by aJie on 2009, February 16, 1:59 PM.网络资源Gaze at the vivid yellows, blues, and psychedelic swirls of a single emperor angelfish and you'll sense the whimsy of evolution.

瞧瞧那"皇帝神仙鱼"身上鲜艳的黄与蓝，还有迷幻般的漩涡，你就能感受到生物进化的无奇不有了。

Two factors have recently made possible an investigation into the evolution of angiosperm C-values in such a phylogenetic context.

有两个因素，最近可能进行调查的演变被子植物的C -价值观，在这样一个背景下的亲缘。

Phylogenetic relationships among these families and within the Hamamelidaceae have been key questions in studies of angiosperm systematics and evolution.

这些科之间的谱系关系以及金缕梅科内部的谱系关系是研究被子植物系统和进化的主要问题之一。

The evolution of plant undergoes Pteridophyte era、gymnosperm era and Angiosperm era.

植物的演化经历了蕨类植物时代、裸子时代和被子植物时代。

Taking the macro visual angle of system changing and advance gradual reform,using the analysis method of institution evolution and innovation,combining the development of company's administration structure,we can take a deep economic logic analysis to the background,meaning,developing way of independent director system.

运用体制转轨和渐进改革的宏观视角、使用制度演进和制度创新的分析方法、结合公司治理结构的发展，可以对独立董事制度的构建背景、意义、发展途径进行一个比较详尽深入的经济逻辑分析。

The modification occurred in crystal lattice and the restoration effect of annealing are discussed by analyzing the intensity, width and angle of the X-ray diffraction peaks. The H〓 concentration and related structural information are deduced by the evolution of OH〓 absorption spectra with annealing, which offers the experimental proof for further discussion on annealing. The disappearance of the OH〓 absorption peak at 3300cm〓 after annealing indicates that some H〓 of high concentration diffused further into the substrate and the crystal phase changes accordingly.

根据质子交换波导退火前后在OH〓吸收峰特征的变化，推断波导层H〓浓度及相关的结构信息，并对进一步分析退火机制提供了实验依据；由于3300cm〓〓处的吸收峰代表的是立方钙钛矿的HNbO〓结构成分，因此退火后该峰的消失确实说明高浓度区域的H〓继续向波导深度迁移的事实，同时波导区的晶相成分也发生变化。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。