系统发生的

The petrolic substance, which penetrates into the soil with a lot of physical, chemical and biochemical function, will seriously pollute the water system of the soil.

这些石油类物质进入土壤环境后，会发生许多物理、化学和生化作用，造成土壤水环境系统的严重污染。

Thus, a phylogenetic tree is based on a hypothesis of the order in which evolutionary events are assumed to have occurred.

因此，系统树是基于对进化事件发生顺序的假设。

They are trying to repair a breakdown in the refrigerating system.

他们正在全力失修发生故障的冷却系统。

Compound systems composed of two or more substructural systems are studied in this project.

本项目研究由两个或多个弹性体系组合而成的复合系统，弹性体系之间可以发生相对运动。

In order to prevent aspiration and pneumonia, this study develop a neural prosthetic system to assist laryngeal elevation which is the major movement of airway closure by functional electrically stimulating the thyrohyoid muscle.

为避免上述吞咽障碍之发生，本研究发展功能性电刺激系统，刺激甲状软骨肌来辅助喉部上举，以达到呼吸道闭合的第一道防线。

An effective induction system forpotato microtuber induction was established with the advantages ofhigh induction frequency, large microtuber size and early tuberization.

这种诱导系统使用液体培养基，具有试管微型薯发生频率高、薯块体积大和微型薯形成早的特点。

Vanadic oxide, nitric acid and sulfuric acid were used to decompose soil and plant samples in 80℃ water bath, and then the mercury concentration was determined by FI-HG-CAAS.

然后采用五氧化二钒-硝酸-硫酸体系，在80℃水浴中消解土壤、植物样品，再用流动注射-氢化物发生石英管冷原子吸收系统测定样液中的汞。

Vasculogenesis and angiogenesis are two types of neovascularization in the embryo development.

在胚胎发育过程中，血管系统的建立始于两种方式：血管发生和血管新生。

Approximately one-quarter of ischemic stroke occurred in vertebrobasilar artery system.

近1/4的缺血性卒中发生在椎基底动脉系统。

The purpose of this paper is to test phylogenetic relationships among zokor genera using molecular systematic mehtods.

本文旨在用分子系统学方法探讨鼢鼠亚科各类群间的发生关系。

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。