繁殖的

The aim of the research was to establish asymbiotic germination and low-temperature in vitro conservation technique system of Cymbidium dayanum by using plant tissue culture technique to realize its rapid propagation and long-term conservation in vitro.

［目的］利用组培技术建立冬凤兰非共生萌发和低温离体保存技术，以达到快速繁殖和长期离体保存该植物的目的。

The ai mof the research was to establish asymbiotic germination and low-temperature in vitro conservation technique systemof Cymbidium dayanum by using plant tissue culture technique to realize its rapid propagation and long-termconservation in vitro.

利用组培技术建立冬凤兰非共生萌发和低温离体保存技术，以达到快速繁殖和长期离体保存该植物的目的。

But if that theory is correct then bdelloid rotifers, freshwater invertebrates that haven't had sex in at least 30 million years, should have been parasited into extinction long ago.

但是如果这个理论是正确的，那么蛭形轮虫（一种淡水无脊椎动物，它已经无性繁殖至少3000万年了）应该在很早以前就被寄生虫消灭了。

Few creatures—even bacteria—do without sex entirely, but bdelloid rotifers are among that minority.

很少有生物是完全的无性繁殖，连细菌也不是，但蛭形轮虫却属于这个少数群体。

From above, fine genetic resources of asexual reproduction had been found from commercial and bivoltine genetic races.

因此，在我国二化性蚕品种中可获得雌蚕无性繁殖系培育所需的优良种质资源。

All sexually reproducing organisms derive from a common ancestor which was a single celled eukaryotic species.

所有有性繁殖生物源于一个共同的单细胞真核生物物种祖先。

The apical buds of Celosia cristata were used as the explants for the rapid propagation to compare the mutagenic effects treated with colchicines at different concentrations and time duration in tissue culture.

以鸡冠花顶芽为外植体，研究其离体快繁程序并在无菌体繁殖条件下探索了秋水仙素溶液不同浓度和时间处理对鸡冠花的诱变效应。

Philomachus pugnax belongs to Scolopacidae of Charadriiformes, it breeds in northern Eurasia, westwards to Britain, Norway and Sweden, northwards to Chukotskiy Peninsula, northeast of Siberia, southwards to Germany, Netherlands, Gilgis Plain of Central Asia and Altai, and winters in Africa, Southeast Asia and Australia.

流苏鹬属鸻形目鹬科。繁殖于欧亚大陆北部，西至英国、挪威、瑞典，往北到西伯利亚东北角的楚科奇半岛，南至德国、荷兰、中亚吉尔吉斯平原和阿尔泰山。越冬于非洲、东南亚和澳大利亚。

This paper deals with the preliminary results on tissue culture and rapid propagation of Cinnamomum camphora.

本文报道应用组织培养育苗技术从樟树家系快速繁殖无性系植株的初步结果。

Clonal propagation can also give some large gains in a relatively short time.

繁殖无性系也可以在较短期间内提供较大的增益。

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