系统发育

The galanthus nivalis agglutinin is one kind of plant mannose combine agglutinin, it can integrate on the glycoprotein acceptor of insect enteron epithelial cell, and produces partial or system poisons to the insect and suppresses its growth.

雪花莲凝集素是目前与害虫治理有关且研究得比较多的一种单子叶植物甘露糖结合凝集素，能结合到昆虫消化道上皮细胞糖蛋白受体上，对昆虫产生局部或系统毒害后果，抑制害虫生长发育繁殖。

With the aid of paraffin section and histochemical techniques, the formation, structure, development and polysaccharide's change of extrafloral nectaries in Cerasus were studied.

应用石蜡制片及组织化学技术对樱属植物花外蜜腺的形态、结构及发育过程中结构及多糖变化进行了较为系统的研究。

Chinese shrimp is one of the most important economically valuable crustacean in China. Due to the limited knowledge on this system, eyestalk ablation is still a main method to promoting gonad development and maturation.

中国对虾是我国重要经济甲壳动物，由于缺乏对中国对虾这一系统的了解，至今仍采用切除眼柄的促进性腺发育、成熟。

During the 3 breeding cycle, we have research successfully on the laying eggs, fecundation, artificial incubation, artificial fostering nestlings , and the nestling growth in captivity.

终于在大鸨人工饲养条件下产卵、受精、人工孵化、人工育雏及雏鸟的生长发育等方面的研究上取得了成功，同时还对大鸨的骨骼解剖，羽毛微观结构观察及成分分析，生殖系统解剖、消化系统解剖及消化系统组织学疾病防治进行深入的研究。

The potential of moss as a model system to study plant biological process is associated with their relatively simple developmental pattern and the dominance of the haploid gametophyte in the life cycle.

苔藓植物具有相对简单的发育模式，单倍体的配子体在其生活史中占主导地位，作为研究植物生物学过程的模式系统具有诸多的优越性。

Objective:To study the influence of lead poisoning on viscera growth and hemopoietic system in neonatal Mongolian gerbil.

目的 ：研究铅对新生期长爪沙鼠脏器发育和血液系统的影响。

The middle embryonic germ layer, lying between the ectoderm and the endoderm, from which connective tissue, muscle, bone, and the urogenital and circulatory systems develop.

中胚层中间胚芽层，位于外胚层和内胚层之间，最终发育成结缔组织、肌肉、骨骼、泌尿系统及循环系统

At the end of the yolk-sac stage the yolk and oil globule have been used up and the major organ and sensory systems required to capture prey are functional.

在发育的这一个阶段结束时，卵黄与油球会耗尽，主要的器官与知觉系统已具捕获且消化猎物的功能，原始的胸鳍也已出现。

The part of the embryonic mesoderm, consisting of loosely packed, unspecialized cells set in a gelatinous ground substance, from which connective tissue, bone, cartilage, and the circulatory and lymphatic systems develop.

间叶细胞胚胎的中胚层部分，由生长于胶状基质的、结构松散的、无特定功能的细胞组成，这些细胞将会发育成结缔组织、骨、软骨、血液及淋巴系统

Thus, the formation of papillae is an important first step in development of the gustatory system in mammals..

因此，乳头的形成是哺乳动物味觉系统开始发育的第一步。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。