在进展

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 this review, we focus on the expression of microRNA in embryonic stem cell and their function.

本文就microRNA在胚胎干细胞中的表达及其作用的研究进展做一综述。

At present, China plus the ratio of liquid emulsion of research has made some progress, but there are many problems.

目前我国在乳化液配比加液方面的研究已取得了一定进展，但也存在着不少问题。

The method and technical development of acetonation of hexabasic alcohol , and its application in the synthesis of one enantiomer of drugs were reviewed.

论述六元糖醇丙酮化作用的方法和工艺进展，以及其在合成光活性单一对映体药物中的应用。

In some cases encephalitis may progress and become fatal.

在某些情况下，脑炎可能的进展，并成为致命的。

This paper reviewed the research progresses about the cysts, especially the resting cysts of protozoans, mainly focused on the characteristics of morphologies, structures, constituents, and living activities, as well as molecular mechanism and significance of encystment for the protozoans, also, cell behavior during encystment and excystment was involved based on the references reported.

以国内外文献报道为依据，综述了原生动物包囊，特别是休眠包囊的研究进展情况，主要集中在包囊的形态、结构、组成、生命活动特征、包囊形成的分子作用机理和意义，以及包囊形成与解脱过程中细胞行为上的研究等方面。

Beginning of the progress in every field of human endeavor.

开始在各个领域取得进展的人的努力。

In this paper, the recent progress of thermoelectric refrigeration is summarized and commented in three aspects, such as thermoelectric materials, thermoelectric couple structure, and enhanced heat emission mode. The future research development of thermoelectric refrigeration technology is also suggested.39 Refs. In Chinese.

通过查阅大量文献，在充分了解热电制冷技术理论的基础上，从热电材料、温差电对结构和强化散热方式三方面对热电制冷技术近年的一些研究热点和进展进行了总结和评述，并对以后的发展方向提出了展望。

In this paper, the recent progress of thermoelectric refrigeration is summarized and commented in three aspects, such as thermoelectric materials, thermoelectric couple structure, and enhanced heat emission mode. The future research development of thermoelectric refrigeration technology is also suggested.39 Refs.

通过查阅大量文献，在充分了解热电制冷技术理论的基础上，从热电材料、温差电对结构和强化散热方式三方面对热电制冷技术近年的一些研究热点和进展进行了总结和评述，并对以后的发展方向提出了展望。

And then finally we've got to figure out what they have done on highly enriched uranium.

最后我们还必须调查朝方在铀浓缩方面的进展情况。

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