系统发生的

The resulting phylogeny indicated that:(1) Araneidae and Tetragnathidae, which build orb webs, are not a sister group in the superfamily Araneoidea;(2) Theridiidae and Linyphiidae, which build nonorb webs, are also not monophyletic, The results also corroborated the independent origins of linyphiid sheet webs and theridiid gumfoot webs;(3) The phylogenetic placement of linyphiid closer to tetragnathid than to araneid implies that the similarities of male palpal organ between linyphiids and araneids may be homoplastic rather than homologous.

结果表明：(1)织圆网的园蛛科和肖蛸科蜘蛛在园蛛总科里不是姊妹群；(2)不织圆网的球蛛科和皿蛛科也不是单系的，进一步证实了皿蛛片网和球蛛网独立起源的观点；(3)皿蛛科蜘蛛的分子系统发生地位与肖蛸科较近而与园蛛科较远表明皿蛛科和园蛛科间雄性触肢结构的相似性很可能是类似而不是同源相似。

Xue-Wu Tunnel, which is located in Provincial Highway No.7, is the first case to use Fiber Bragger Grating Sensors Real Time Monitoring System to measure tunnel deformation.

雪雾隧道的光纤监测系统，不但使用先进的光栅式光纤技术，并设置了远端即时监控的功能，还可於灾害发生的第一时间主动发布电话语音简讯，隧道养护人员便可透过网际网路随时随地掌握现场的即时影像及监测数据。

Mr Freeman's body, launched by Canberra late last year, is the first with power to manage the entire river system, overriding rivalries between the four basin states, so that calamities such as Lake Alexandrina's don't happen.

弗里曼领导下的机构于全年晚些时候在堪培拉成立，它是第一个有权利整治全国河流系统，以避免亚历山德里娜湖的悲剧又一发生的组织，而在此过程中它完全不过河流流域周围其他四个州的反对。

In this paper,researching progress of allelopathic autotoxicity in agro-ecosystem was briefly reviewed based on many studies collected,including allelochemicals,factors of allelopathy ,mechanism of allelopathy .

本文对化感作用的本质和影响因素，化感中自毒作用对作物连作的影响进行了阐释与介绍，在此基础上综述了植物化感自毒作用与土壤病虫害发生、土壤微生物之间的关系，并对化感及自毒作用在农业生态系统中的应用和前景进行了展望。

Your Legacy Systems have been "Leap Frogged" by a Nimble Entrepreneurial Firm - This happens all the time and can cause an erosion of your customer base.

你的遗留系统已被&甩开&，由一个灵巧的创业公司，这一切发生的时间，并且可造成侵蚀，你的客户群。

Some problems exist in the traditional protection method: it may perform maloperation in time of power swing; the existence of transition resistance may result in tripping missing or maloperation.

但是距离保护的性能也存在一些问题：当系统发生振荡时距离保护可能会误动作，过渡电阻的存在可能会使距离保护误动或拒动等等，这些对距离保护的性能有很大的影响并且难以避免。

The circuit and topology of RS232C interface are analyzed to reveal the mechanism of multiple callings from terminals.

研究了RS232C协议接口电气特性和DCS系统网络的工作特性，分析了基于RS232C协议的并发呼叫帧发生碰撞的机理，并研究了由并发碰撞引起的帧错误类型。

Subsequently, the singular value decomposition Volterra filter is presented to predict the chaotic rating time series and the thermal overload risk of a 110kV line with a DLR system installed.

然后采用基于奇异值分解的混沌时间序列Volterra方法对一条安装有DLR系统的110 kV线路可输送的容量及线路可能发生的热过载故障进行预测。

At this point it is difficult to determine whether any fraudulent activity can be traced to the attack on our system or resulted from credit card theft elsewhere.

这任何诈欺的行为是起因於对本公司系统的攻击，或是在其他地方发生的信用卡窃盗案的结果，在此刻难以判别。

Based on the mechanism of the occurrence of debris flow and the volume of rainfall in the basin, a systematic study on the occurring of debris flow in Jiangjia Gully was done and a suggestion that the hydrological condition for forming debris flow is the unit discharge of the flood ≥ 0.35m2/s.m was gotten.

研究从泥石流发生的机理入手，对泥石流的形成作了系统的研究，提出蒋家沟形成泥石流的水力条件是洪水单宽流量≥

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。