Research towards Cladocera could be dated back to the early period of 18th century. The early reports on Cladocera were limited in the description of the external morphology.
对枝角类的研究始于18世纪初,早期关于枝角类的报道仅限于外部形态描述。
参考来源 - 隆线溞[Daphnia（Ctenodaphnia）carinata]生殖和发育的研究In this dissertation, evidence from gross-morphology, micromorphology, anatomy , palynology, cytology, ecology and ITS data is produced for its taxonomy, its tribe and subtribe position, and a new infrageneric system is presented.
本文研究了该属的外部形态学、微形态学、解剖学、孢粉学、细胞学、生态学以及ITS序列，确定了毛冠菊属的分类位置，并建立了一个新的属下分类系统。
参考来源 - 毛冠菊属的系统学研究The fourth chapter is the analyse of the outer configuration designing menthods,esthetic principles and the esthetic intention,it summaried the concrete processing techniques of physique molding and expressing the sense of reality.
第四章分析了外部形态的设计思路、美学原则及审美意向,对形体塑造和质感表达的具体处理手法进行了概括。
参考来源 - 陆家嘴金融中心区超高层建筑外部形态设计研究·2,447,543篇论文数据，部分数据来源于NoteExpress
本文从内部结构与外部形态两个方面来认识企业核心能力。
This paper examines core competence of corporation from the view of both internal structure and external form.
就舞蹈语汇而言，大致可分为外部形态动作和内部情态两个部分。
The lexicon of dance is roughly divided into two parts: external body movement and internal emotion, External body movement refers to the visual form of movement, rhythm and so on .
研究结果表明，对撞流干燥对刨花的外部形态和内部纤维结构都没有造成破坏。
The results indicate that the exterior shape and the interior fibrous structure of wood particles aren't broken after dried by ISD.
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