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A new algorithm, called the travelling-around-the-center method, is proposed in this paper.

提出了一种求解平面旅行商问题的新算法——绕中心周游法,它是一种确定型算法,时间复杂性与最近邻算法相同,为O(n2),其中n为城市数。

a tool for cutting circular holes around a center.

在中心周围切圆形的孔的一种工具。

URBAN DEVELOPMENT OF SURROUNDING AREAS OF COMPREHENSIVE SPORTS CENTER:A CASE STUDY OF SURROUNDING AREAS OF GUANGDONG OLYMPIC SPORTS CENTER

综合体育中心周边地区城市开发探索——以广东省奥林匹克体育中心周边地区为例

The gym is open from 6.00 am to 11.00 pm from Monday to Friday and between 7.00 am and 8.00 pm on Saturday and Sunday.

健身中心周一到周五从上午6点开到晚上11点，周六日是上午7点到晚上8点。

a layer of lead surrounding the highly reactive core of a nuclear reactor.

核反应堆的高幅射性中心周围镀的一层铅。

The mass of cytoplasm surrounding the centriole in a centrosome.

中心球在中心体内中心粒周围的大量细胞质

The earth have a core and a mantle around it.

地球的中心是地核，地核的周围是地幔。

The earth has a core and a mantle around it.

地球的中心是地核, 地核的周围是地幔.

On weekends, Central Park... the largest piece of opening ground in New York,

在周末，中心公园，纽约最大的户外场所，

It asks us to see the teahouse as the center of the neighbourhood.

它让我们看到了作为周围中心的茶馆。

We are going to visit next week the National Center of Arts.

下周，我们要去国家艺术中心参观。

Weak Centers and Local Bifurcations of Critical Periods for Liénard Equations;

多项式Liénard方程细中心及临界周期分岔

Metaphor and Symbol--Taking "Book of Change" as Central Inquiring about;

隐喻与象征——以《周易》为中心的探寻

Meal Having and Ritual──Some Notes on the Meal Having Factor in the Ritual System of Shang and Zhou;

食与礼──浅谈商周礼制中心饮食因素

BUSINESS CENRE: Offers complete and perfert facilities, thoughtful service. diverse kinds of convention halls. Both the business centre and ticketing office provide wieh you every satisfactory service.

商务中心：设施齐全、务周到、类会议厅俱全。商务中心票务中心为你提供周到的服务。

And the city of New York will open a visitor center at Ground Zero this week after the anniversary the 911 attacks.

纽约市本周在911袭击纪念周年之后将开放游客中心第一层。

Distribution of 3 Kinds of Periodontal Pathogens in Subgingival Plaques in Chronic Periodontitis Patients and Coronary Heart Diseas;

三种牙周致病菌在慢性牙周炎和冠心病患者龈下菌斑中的分布

Test of the Periodontal Microbiota in the Subgingival Plaque of Periodontal Patients with Coronary Artery Disease

伴有冠心病的牙周炎患者龈下菌斑中牙周炎相关致病菌的检测

Zhou Zuoren's Passion to Folk Culture--A Study of Zhou Zuoren's Discourse on Zhuzhici

周作人的民间文化情怀——以周作人关于竹枝词的论述为中心