系统发育

The development,structure and distribution of the secretory ducts are studied systematicly in primary structure of Ailanthus alitissima .

系统地研究了臭椿初生结构中分泌道的发生发育、结构及分布规律。

In addition to the maintaining of the functions of mother and child's cardiovascular system. Sufficiency supply alimentation of high quality nutritional oils the mother and child required during pregnancy. Therefore, the highly nutritious tea seed oil is important to the proper growth of a fetus.

孕妇吃易消化、高营养的茶叶籽油可减轻消化系统的负担，轻松解决孕妇便秘，促进人体新陈代谢，维护母子心血管系统的正常功能，充分补充妊娠期间母子所需的高质量油脂营养，对胎儿的正常发育十分有益。

Androgen: any of a group of hormones that mainly influence the development of the male reproductive system.

雄激素：一组主要影响雄性生殖系统生长发育的激素。

With the rich sediments supplied by the Pearl River, under the paleogeography sedimentary background of Baiyun Sag continuously subsiding, with sedimentary sequences related to relative transgressive sea level change ,contrary to regressive eustasy, the Pearl River Deepwater Fan System has specific evolution characteristics, which left the sedimentary record controlled by peripherical significant geological events.

珠江深水扇系统以珠江为沉积物源、以持续深沉降的白云凹陷为沉积古地理背景、以与全球海退型海平面相反的相对海侵型海平面变化的沉积层序构成了其发育演化的特殊性，并留下了控制沉积的周边重要事件的记录。23.8 Ma等界面沉积速率和岩石地球化学特征均有突变，反映出物源区的变化，可能折射出与青藏高原隆升、南海扩张有关的重要事件，使得古珠江骤然向西部高原拓展，甚至较今天的珠江流域范围还广阔；承载珠江深水扇系统的白云凹陷持续沉降形成了陆坡内盆地，导致21~10.5 Ma BP多个层序深水扇垂向叠置充填的特殊沉积建造；根据60多口井资料建立的相对海平面变化曲线，具有与全球海平面变化相一致的三级旋回和不一致的二级旋回。

In this study, a new horizontal microinjection system has been established to solve these problems. Because the average time per pronuclear embryo by microinjection has been significantly shortened with the horizontal system, the cleavage rate and 16-cell rate of those microinjected embryos increased markedly.

为了解决这些问题，本研究有针对性地设计了新型的水平微注射系统，利用此系统，可明显缩短常规注射原核胚的平均时间，注射后原核胚的分裂率、8-16细胞胚胎发育率也明显提高。

Conclusion］There are the same correct effectiveness and the biomechanical stability in the treatment with the slidable pedicle screw system and universal pedicle screw system,meanwhile there is no effect in the adolescent growth.

结论］滑动椎弓根钉系统治疗脊柱侧凸同样能够达到通用椎弓根钉系统相同的矫形效果及生物力学稳定性，同时它不影响青少年生长发育。

Trigonocephalus is an important prey for many aquatic animal species at the Yangtze River estuary.

纹缟虾虎鱼广泛分布于长江口水域，是许多水生动物的重要饵料，在长江口水生生态系统中具有重要地位。2007年在人工繁殖基础上系统研究了长江口纹缟虾虎鱼胚胎与仔鱼的发育特征及其与温度、光照、pH等生态因子的关系。

The complex fault depression is a combination of two or more half grabens, with each of these grabens having its own independent sediment-supplying systems. Once these half-grabens were filled, they would have an uniform sediment-supplying system and drainage system and would continue to develop as a larger entity of the faulting depression.

所谓的复式断陷是两个或两个以上的半地堑以某种方式组合而成，在一定时期内，相邻的次一级半地堑各有独立的沈积物供给系统，但当各个次级半地堑充填满以后，相邻的次级半地堑具有统一的物源供给系统和水系连通特徵，以较大的整体断陷形式继续发育。

The network-like space of the reservoir made up of po res and vugs linked by fracture system, often exists in the carbonate rocks. The shape and t he configuration of this type of pool is irregular, heterogeneous and well conce aled, which should be classified as an independent basic type.

网络状储集空间由被裂缝系统串联起来的孔洞系统构成，多发育在碳酸盐岩之中，所形成的油气藏形态的不规则性和结构的非均质性以及隐蔽性很强，在油气藏形态分类和勘探中，都应作为一种独立的基本类型。

The discrete-element modeling is a new dynamic modeling method in structural geology and geophysics research. The authors built a discrete element model to simulate the evolution of the fault system in active salt domes. Results show that the fault system undergoes three stages: symmetric deformation stage, asymmetric deformation stage, and complete fracture stage.

离散元模拟是构造地质地球物理研究中一种新的动力学模拟方法，作者通过构建离散元模型，模拟了主动底辟盐构造断裂系统的演化过程，结果表明，该断裂系统的发育主要经历了对称变形、不对称变形、整体破裂三个阶段。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐