Chapter One Definitions and History of Information Science Chapter Study Tasks (1) In this chapter, you will be able to -Identify the different definitions of information science

本教材是依据中等职业学校英语教学大纲编写而成。可供中 等职业学校学生使用,也可供英语爱好者自学使用。 本书话题涉及城市向题、旅游、健康、环保、求职、名人等 各方面,题材新颖,时代感强。教材提供了一些应用性的训练, 可引导学生进行英语的学习和交际 本书为双色印刷,版式精美,图文并茂,是一本融知识性、 趣味性、使用性为一体的好教材

我的单词:越背越过瘾 你的潜意识中去了。你熟练掌握(滚瓜烂熟)的单词,将其处理成绿色,你含 单词歼灭战“动员令”(上) 糊掌握的处理成红色,其他的随意看一遍就可以了,犹如总统检阋海陆空 三军,俯瞰你的“官兵”即可,享受这份检阅的乐趣 却说周奔驰大专毕业,扔下英语八年之久,而且在读大专时没有选 修英话(嘘噓,这一点周奔驰很少对人说起,拜托,千万别对外声张,给他点

语法 非谓语动词 动名词 1.某些动词后要接动名词 某些及物动词后能用动名词而不能用不定式作宾语,其中最常用动词的有 admit avoid, appreciate, complete, consider, delay, deny, dislike, enjoy, escape, excuse, fancy, finish, forgive, involve, imagine, can

第一天[2003.02.14. abandon vt.抛弃,离弃 The cruel man abandoned his wife and child. 那个狠心的男人遗弃了妻儿。 vt.放弃 They had abandoned all hope. 他们不再抱任何希望

The power required to propel a new ship is subject to a formidable number of variable items. The family tree of power for propulsion (Fig. 1) shows these divided into two main groups. One is concerned with the resistance to motion caused by the interaction of the hull of the ship with the surrounding water

The outside surface of a ship is the surface of a solid with curvature in two directions. The curves which express this surface are not in general given by mathematical expressions, although attempts have been made from time to time to express the surface mathematically. It is necessary

The design of a ship involves a selection of the features of form, size, proportions, and other factors which are open to choice, in combination with those features which are imposed by circumstances beyond the control of the design naval architect. Each new ship should do some

Before studying in detail the various technical branches of naval architecture it is important to define chapters. The purpose of this chapter is to explain these terms and to familiarise the reader with them. In the first place the dimensions by which the size of a ship is measured will be considered; they are referred to as 'principal

The general approach Earlier Parts have given a broad picture of the economic environment within which marine transport operates, and the mechanics of making economic calculations. Ship design links the two, i.e., the marine transport requirements must be developed into a series of feasible ship designs