特点

On the basis of study on a couple of prevailing fieldbus,combined with the development of fieldbus-based simulated monitoring system of marine engine room in Qingdao Ocean Shipping Mariners' College,which the author joins,the design and technical features of fieldbus systems are analyzed,the advantages to adopt fieldbus technology in narine engine room are discussed,the basic operating principle of LonWorks fieidbus is approached,the structural scheme of LonWorks bus-based monitoring and alarming system simulator of marine engine room is proposed,and the buildup and function thereof are detailedly expounded to some extent.

本文结合作者参加的青岛远洋船员学院机舱监测报警模拟系统的科研工作，在研究了当今流行的几种现场总线的基础上，分析了现场总线系统的结构特点和技术特点，论述了在船舶机舱中采用现场总线技术的优越性，探讨了LONWORKS总线的基本工作原理，提出了基于LONWORKS总线的船舶机舱监测报警模拟系统的构造方案，并对该监测报警模拟系统的组成、功能等进行了比较详细的论述。

On the basis of study on a couple of prevailing fieldbus,combined with the development of fieldbus-based simulated monitoring system of marine engine room in Qingdao Ocean Shipping Mariners' College,which the author joins,the design and technical features of fieldbus systems are analyzed,the advantages to adopt fieldbus technology in narine engine room are discussed,the basic operating principle of LonWorks fieidbus is approached,the structural scheme of LonWorks bus-based monitoring and alarming system

摘要本文结合作者参加的青岛远洋船员学院机舱监测报警模拟系统的科研工作，在研究了当今流行的几种现场总线的基础上，分析了现场总线系统的结构特点和技术特点，论述了在船舶机舱中采用现场总线技术的优越性，探讨了LONWORKS总线的基本工作原理，提出了基于LONWORKS总线的船舶机舱监测报警模拟系统的构造方案，并对该监测报警模拟系统的组成、功能等进行了比较详细的论述。

On the basis of sand-bodies Isopach figure drawing, the distribution of major reservoir sand-bodies of Neopaleozoic in south of North China Basin was studied. Basing on the distribution of sand-bodies in sequence stratigraphic framework, combining the development and distribution features of barrier and underwater distributary channel, there is a disquisition on the distribution regularity of pay reservoir sand-bodies of Neopaleozoic in this area.

以编制砂体等厚图的方式研究了华北盆地南部上古生界主要储集砂体的平面展布规律，并以层序地层格架下的砂体展布研究为基础，从沉积体系控制下的砂体分布特点出发，结合障壁岛与水下分流河道的发育与分布特点，系统深入地开展了区内上古生界有利储集砂体的分布规律研究。

Hangzhou Bay Bridge is the dream of many years Ningpo, Hangzhou Bay is the world's three-tidal bay, the biggest feature is a flood, streaming urgency, while the southern coast has a very wide beach, the beach there are more than nine kilometers, in the Land under some natural gas, the construction of a bridge in this place, in the past were very rare, and uniqueness lies in the special geographical environment, the difficulty of his decision, he is quite a high cost, so that the Hangzhou Bay Bridge The greatest feature is that under these conditions to build a bridge, how to overcome difficulties.

杭州湾跨海大桥是宁波人多年的梦想，杭州湾是世界三大强潮海湾，最大的特点就是一个潮大，流急，另外有一个南岸非常宽的滩涂，这个滩涂有九公里多，在滩涂底下还有一些天然气，在这个地方建桥，在以往是很少的，特殊性就是在于特殊的地理环境，决定了他的难度，他的成本也是相当的高，所以说杭州湾跨海大桥最大的特点就是在这种条件下要建设一座大桥，如何去克服困难。

Secondly, on this foundation, this thesis summarises characters of podcast, such as freedom, easy taking, strong interaction, easy threshold, multidissemination and nonfinite dissemination, compared with traditional mediums like broadcast, television and internet television. And this thesis also puts forward that the podcast is a kind of medium of grass roots against traditions.

其次，在此基础上，本文在比较播客与博客、播客与传统广播电视、播客与网络电台和网络电视的过程中总结出播客的六大媒介特点，即自由、便携、互动性强、准入门槛低、多媒体传播、非线性传播等特点，提出播客是一种颠覆传统的草根媒介。

In this study the composites were applied to repair the rabbits'mandibular defects and implanted at the surface as onlay grafts that was fixed with dental implants. The ability of the composites repairing maxillofacial defects was evaluated with general observation, radiological and histological examination and compared with autogenous bone and coral.

本研究通过观察rhBMP-2、胶原、珊瑚复合骨修复兔下颌骨缺损，加高狗下颌骨骨面及与牙种植体结合，并与新鲜自体骨和珊瑚的修复作用比较，（1）应用复合骨修复兔下颌骨缺损，1、2、3个月取材，（2）将复合骨植于狗下颌骨体部颊侧骨膜下，采用钛种植体固定，1.5、3个月取材，通过体视及测量，X线片，组织学等观测指标，分析rhBMP-2、胶原、珊瑚复合骨修复骨缺损特点和体内降解特点。

Thirdly, by means of distinguishing its features, in accordance with thesetup rule, with the aboved feature of society, economy, environment, logistics industry andsystem and network, and so on, in order to achieve sustainable development as target, throughfour angles as society, economy, environment, logistics industry, select 8 index to establish it,moreover, use the AHP law obtain their weight, besides, by analyzing incompatible problembetween index and method, existed in traditional methods, in accordance with principle andfeature of extension synthesis assessment method, evaluate and optimate logistics centerplanning schemes and get an accurate result in the practical example.

再次，通过分析研究物流中心规划方案的特点，根据建立评价指标体系的原则和要求，结合前述的社会、经济、环境、行业、系统、网络等特征，以促进可持续发展为总目标，从社会、经济、环境、物流行业四个角度考虑，有选择性的选取了8个评价指标，建立了物流中心规划方案的评价体系，并应用层次分析法得出了各指标权重。另外，在分析比较传统方法存在指标体系与评价方法存在不相容等问题的基础上，根据可拓综合评价法的原理及特点，将其引入到物流中心规划方案评价的研究中，并通过廊坊物流中心规划方案评价进行了实证研究，取得了合理的评价结果。

Compounds may be distinguished from free phrases on phonological, semantic, grammatical and orthographical features.

合成词与短语在音系，语义，语法以及拼写特点上的特点是使之能够在现代词汇中占据绝对优势的重要原因。

What are these characteristic features which outstand in making the English language what it is,which give it its individuality and make it of this worldwide significance?

这些在英语的形成过程中起了突出作用的特点，这些给英语以个性并使之具有全球意义的特点是什么呢？

Methods According to the ecological characters of, Aedes albopictus ,and the structure of CDC ovitrap and housefly trap,we invented a Mosqovitrap in which the mosquito would be attracted to oviposit,and would be caught.

方法根据白纹伊蚊的生态特点和美国疾病预防与控制中心诱卵器监测方法，结合捕蝇笼结构特点，设计具有引诱伊蚊产卵的器械，并在实验室及现场进行验证。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐