繁殖

According to the results, Mark Barter and LEI Gang considered that the number of Non-breeding Dunlin at the lower reaches of Yangtze River could be more than 200 thousand.

根据本次调查的结果， Mark Barter 和雷刚认为，非繁殖期在整个长江下游的黑腹滨鹬数量可能超过20万只。

In this study, we focused our attention on the establishment of rapid propagation system and the induction condition of the tube earthnut, and also the effect of 60Coγray irradiation on the growth of cultured seedlings of Radix Puer...

本实验对粉葛快速繁殖体系及试管块根的诱导条件进行了研究，并探索了~(60)Coγ射线辐照对粉葛组培苗生长发育的影响。

They have infested the shallow filmy brine of the Ebon Sea, becoming the dominant predator of the area.

它们在厄本海的浅滩一带大量繁殖，成为那个地区的优势物种。

This reports about the study on the femalereproductive organ in the two differren-productivity Ovis aries. Study on the expressing level ofvascular endothelial growth factor receptor—Flt-1 gene of reproductive organ in pregnant sheep.It provided a method for further studying on embryo transplantation, embryonal ectogenesis,treatment of disturbance of genital system of female mammalian.

因此本文以繁殖力高低不同的两个绵羊品种为研究对象，研究血管内皮生长因子受体——Flt-1基因在其妊娠期生殖器官表达变化水平，以期为对哺乳动物胚胎的体外发育、胚胎移植和雌性哺乳动物生殖系统疾病的治疗提供参考依据。

To work out the underlying process will be important to the conservation of the breeding waterbirds, especially the Chinese egret in this area.

其内在的影响因素值得进一步探讨，这对有针对性地制订保护和管理对策，降低黄嘴白鹭的竞争压力，最大限度地提高保护区繁殖水鸟的多样性具有重要价值。

A positively charged electrode, as of an electrolytic cell, a storage battery, or an electron tube .

多源发生说；多细胞繁殖从一个以上的祖先或初始细胞衍生成为一个物种或一种类型

The botanical characteristics and biological characteristics of DeHong Elephant grass and King grass were observed and compared.

通过对德宏象草和王草的植物学特征、生物学特性进行观测比较，结果表明：德宏象草种子实生苗生长速度快，其自然扩展蔓延途径主要依靠种子繁殖进行；德宏象草的干物质产量、主要营养成分均极显著高于王草P。

Research advances on the biological and ecological characteristics of P.japonica are summarized in this paper, which includes the variation in elytra color polymorphism, life history, fecundity, appetite, predation, over-wintering habits, artificial rearing technique, and population dynamics under natur...

本文从龟纹瓢虫的生物学和生态学特性，包括色斑变型、生活史、繁殖、食性、越冬、人工饲养、田间动态以及在生物防治上的应用等方面概述了龟纹瓢虫的研究进展，提出进一步深入开展龟纹瓢虫的人工饲养技术、贮藏技术和色斑变型遗传机制等的研究，不仅可以更好地为农业生产服务，而且可以充实昆虫生态位理论的研究内容。

In vitro somatic embryogenesis is another form of vegetative propagation.

体细胞胚胎在试管中形成，是另一种形式的无性繁殖。

Somatic embryogenesis is of great value in various sides such as seeding propagation, genetic improvement in trees.

体细胞胚胎发生在林木的繁殖，遗传改良等领域有很大的应用价值。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。