外起源

其胚性原始细胞既有内起源，又有外起源。

Both within the original cells of embryonic origin , but also foreign origin .

结果：不定芽主要为外起源，最适宜作诱变处理；

Result : The adventitious buds were mainly externally originated and thus fit for polyploid induction .

而不定芽则通过愈伤组织的薄壁细胞再次脱分化和再分化活动而形成，为外起源。

Adventitious buds came from the re-dedifferentiation and redifferentiation activities of the parenchyma of the callus , and were " external origin " .

结论婴儿色素性神经外胚瘤起源于原始的神经外胚层细胞，为低度恶性肿瘤。

Conclusion The study indicates that the tumor origins from neural crest and is low malignancy .

该回前部的标记细胞数量较后部明显多，内、外半的起源细胞数量也不同。

The amount of labelled cells in the anterior part of the gyrus was much larger than those in the posterior .

本文从国内外温室的起源入手。概述了温室在东西方的发展历史以及温室在国内外的发展现状。

With the beginning of introducing the origin of domestic and international greenhouse , this text has summed up the developing history of greenhouse in the east and west , and its current situation of the development at home and abroad of greenhouse in a brief way .

因此研究新外显子的起源与进化也是十分重要的进化生物学的领域。

So origin and evolution of exon is an important question in evolutionary biology .

小剧场（西方称为实验性质剧场或者外百老汇剧场）起源于19世纪的欧洲，举办场所为面积狭小的空间，比如地下车库。

Originating in Europe in the 19th century , small theater ( called Fringe theater or Off-Off Broadway theater in the West ) is performed in a tiny space , like an underground garage .

第一章为导言，论述了选题的背景及意义，介绍了国内外孵化器的起源和发展，并着重分析了国内外相关研究动态。

The first chapter is the introduction , it discusses the background and meaning of the research , introduces the origin and development of the incubator , and emphatically analyzes correlated study trend at home and abroad .

其次，在介绍国内外劳动派遣的起源、兴起与发展现状的基础上，梳理我国外企代表处劳动派遣的起源与发展现状。

Following , on the base of introduction of the origin and development of labor dispatch at home and abroad , this thesis points out the origin and development status of foreign resident rep. offices ' labor dispatch .

论文通过分析基础学科与森林旅游的关系，追溯国内外森林旅游的起源和发展沿革，归纳其类型特征和旅游分布，总结建设成就和做法经验，探讨森林旅游发展趋势。

This paper has made an analysis on the relationship between basic sciences and forest resources , origin and development of forest tourism both at home and abroad , its features and distribution , and summarized its achievement and lessons gained in the course of development .

研究人员是在研究HIP13044恒星的时候发现了这颗太阳系外行星。恒星HIP13044又名Sergio（塞尔吉奥），取在银河系外起源的恒星之意。

Researchers found the exoplanet while looking at the star HIP 13044 or Sergio , for Star of Extra-Galactic Origin .