系统发育

Researchers have had systematically studied on this technique for many years, and this technique has been utilized in application and made a lot of effects;2 Combining with the techniques of cell engineering (nuclear transplantation and electric fusion etc.), and through the process of culturing histiocyte of fish, cryopreservation and re-culture after thawing, carrying out somatic cell breeding of fish.

多年来，国内外学者对各种鱼类精液的冷冻保存进行了大量的系统研究，目前这项技术已达到实用水平，并日益发挥作用；二是对鱼类培养的组织细胞冷冻保存，通过鱼类细胞的培养、超低温冻存、解冻后再培养过程，结合细胞工程技术进行体细胞育种；大量的研究结果表明鱼类体细胞核具有发育的全能性，随着细胞培养技术、细胞工程技术日益发展成熟，完全具备实现鱼类物种种质长期保存的理论基础和技术条件。

On the variations of cerebral arteries of 204 cases on MR angiograms, the hypogenesis and absence of ACA A1 segment were seen in 10.8% and 8.3% separately, branching earlier of MCA in 1.5%, PCoA in 61.3%, fetaltype PCA in 29.9%, and the abnormal communicating arteries between ICA and BA system in 0.5%.

三、脑动脉的MRA变异中，ACA-A1段发育不良率10.8％，缺如率8.3％；MCA过早分支率1.5％；PCoA的显示率61.3％，FTP发生率29.9％；ICA与BA系统的异常交通发生率0.5％。

Our experiment is conducted to clone porcine LH-β gene from hypophysis of the special Meishan pig and systematically study its expressing effect in vivo and in vitro on the reproduction and immune system.

鉴于LH-β是动物生殖和发育调节中十分关键的性激素，国内外对猪LH-β基因的研究甚少，尚未见到对其在体内外转基因表达及其对动物免疫和生殖系统的。。。

Our previous studies have shown that SMAD5 is required for normal development of the cardiovascular system in vivo.

我们先前的研究表明SMAD5对于体内心血管系统的正常发育是必需的。

This study started from the characteristics of the speech system in the postoperative cleft lip and palate children with velopharyngeal incompetency, analysed the causes and characteristics of the speech disorders in those children, considered the rules of the auditory development in healthy children, followed the rules of combining the therapy for the causes with the therapy for the symptoms and combining the traditional therapy skills with modern techniques, and then built up a framework of speech therapy for those children basically.

本研究从唇腭裂术后腭咽闭合功能不全患儿言语系统结构的特点出发，从此类患儿自身言语功能障碍的成因及其特点入手，兼顾普通儿童听觉发育的规律，遵循对因矫治与对症矫治相结合、传统矫治方法与现代技术相结合的原则，初步提出了一套针对此类患儿言语障碍的矫治框架。

The main controlling factors of the Ordovician karsts are uplifting, interlamination parallel unconformity, fault system, rock physical properties and high-energy sedimentary phase etc.

奥陶系岩溶发育的主要控制因素有隆升作用、层间平行不整合、断裂系统、岩石物理性质和高能相区等，平面上可以划分出隆控岩溶区、层控-断控岩溶区及局限岩溶区，多种成因的岩溶彼此之间可以复合叠置。

Therefore, it have an good meaning to research the karst characteristics of dam area.

因此对坝址区岩溶发育状况，岩溶水系统特征及其对工程的影响进行研究具有重要意义。

We believe that the above experiments can help us to understand the genes associated with germ cell development and the function of FANC L in testis.

通过以上实验，我们相信将提高我们对生殖细胞发育相关的多个基因及FANC L在生殖系统中作用的认识。

Lead poisoning damages the nervous and reproductive systems and can permanently cripple children's growth and intellectual development.

铅中毒会损害人的神经系统和生殖系统，并永久性的阻碍儿童的生长发育和智力发展。

But regarding creates our country automobile finance maldevelopment the reason to analyze and to help people overcome their difficulties the plan to have wide divided opinions, they although have indicated own viewpoint, but all fundamentally has not explained the question, the author thought this is a system question or the environment question.

但对于造成我国汽车金融发育不良的原因分析和解困方略众说纷纭，他们虽然表明了自己的观点，但都没有从根本上说明问题，笔者认为这是一个系统问题或环境的问题。

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。