about adv. 1.大约,差不多;前后,左右。 About a mile 大约一英里。 That's about right. 大致不差。 That's about (the size of) it. 就是那么一回事;大概如此。 It is about finished 差不多要完成[终结]。 2.周围,四面;到处。 Look about 四顾。 3.活动;盛行,到处散布,传布。 The news is going about. 消息正在传开。 4.绕着,围着,倒转,掉转。 Round about 掉转,回头,倒过来。 Face about (使)转过来。 Put the ship about 把船倒过头来。 The wrong way about 相反,倒转过来。 5.附近;〔古语〕周围。 Is the manager about 经理在吗? There is no one about. 附近无人。 A mile about 周围一英里。 6.〔接带 to 的不定式〕将要。 1.在…周围。 About the neck 绕着脖子,围在颈上。 2.在…附近,在…身边,手头。 Somewhere about here 在此地附近。 I have no money about me. 我身边无钱。 3.前后,左右;大概。 About noon 正午前后。 4.对于,关于。 Talk about sb. 谈论某人。 He is most particular about being conscientious. 他最讲究认真。 5.从事于。 What are you about 你在干什么? adj.〔用作表语〕传播,流行。 Rumour is about. 谣言纷纷。 About and about 〔美俚〕差不多,大致相同。 (Right) about face 〔美国〕向后转! About turn 〔英国〕向后转。 Be about 1. 起来;活动;动手,做事 (Butterflies are about early this year. 今年蝴蝶活动得早。 He is not yet (up and) about . 他还没有起来,还未动手。 Mind what you are about! 当心!注意!)2.散布,传播,流行。Be about to 准备,将要,正打算 (He is about to speak. 他正打算说话)。 Go about 1. 正要,将要。 2. 使(船)掉头。 Go a long way about 绕很多路。 Much about 几乎。 Out and about 从事日常工作,(病后等)起来做事。 Set about 动手,着手。 Take turns about 轮流。 Turn and turn about 交互。
And in this paper we also discuss the principle of how to pick up attributes and something we must care in pick up and optimize about attributes 在属性的分类、提取及优化方面,本文详细给出了属性的分类原则,提取及优化属性时应注意的问题。
Many subjects " theories and methods have been used in this article such as land economics, area and urban economics, the urban planning study . on one hand, this article have researched deeply about historical development and current characteristic, expanding outwards, and recombining inwards, mechanism of metropolitan area structure . on the other hand, the article have made a special research about residential land, industrial land, commercial land, business district of dalian . on this basis, propose development model and schemes of optimizing about metropolitan area structure of the city of dalian 本文运用土地经济学、区域和城市经济学、城市规划学等多学科理论和方法,对大连城市地域空间结构的历史演变和现状特征、外向扩展和内部重组、地域空间结构转型的动力机制进行了深入地研究,并对大连城市居住用地、工业用地、商业用地、商务用地和绿地空间结构进行专项研究,在此基础上,提出大连城市地域空间结构的发展模式和优化途径。