This thesis proves that this problem is NP-complete, and proposes two approximation algorithms called SDAS and CDAS respectively.

1、

The design of CDAS 20m antenna subsystem

CDAS20m天线分系统设计

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2、

Intermediate frequency tracking and telemetry receiver of CDAS

CDAS中频跟踪遥测接收机

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3、

The Synchronous timer is used as a major Component of the CDAS S/ DB System.

同步定时器是CDASS／DB系统的重要部件。

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4、

On foundation construction of CDAS station aerial

CDAS站天线基座建设

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5、

The results reveal that senior-high-students affirm the advantages also indicate the defects of CDBS.

结果表明：盲校高中学生充分肯定双拼盲文优越性的同时也指出了双拼盲文本身存在的问题；

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6、

Follow up of neurological development: Neurological development was evaluated by 'CDCC' method when the infants were 6 months. The results were including Mental Developmental Index ( MDI) and Psych-motor Developmental Index ( PDI).

神经发育随访：于生后6个月对窒息儿用婴幼儿发育量表（CDCC法）进行神经发育检查，结果以智力发育指数（MDI），心理发育指数（PDI）表示。

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7、

All infants in the two groups were examined and evaluated for physical build, nutritional status and neurodevelopment regularly. Intelligence test was conducted with CDCC at 6 months, 12 months and 18 months after birth.

两组婴幼儿定期进行体格发育、营养状况及神经发育评估，并于生后6个月、12个月、18个月用婴幼儿智力发育测验量表进行智力测试。

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8、

Results The scores of mental and physical development indexes which were estimated by using CDCC as well as height and weight of infants in early nursing intervention group were significantly higher than those in control group.

结果干预组的精神发育指数（MDI）及运动发育指数（PDI）以及身高与体重显著高于对照组。

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9、

All the groups were inspected with 52 neuromotor inspections test and with CDCC in the 1~ 2 year.

三组均于出生后定期接受体格发育监测和52项神经运动检查，并进行相应干预指导。在1-2岁间做智力（CDCC）检查。

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10、

All infants in three groups were given psychomotor development check and infant development test of Child Development Center of China ( CDCC) at one year old.

三组均在1岁内定期回院由指定医生进行神经运动检查，1周岁进行中国婴幼儿智能发育测验。

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11、

ITU/ CDCC Caribbean satellite system

电信联盟/加勒比开合会加勒比卫星系统

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12、

The establishment of CDCC infant mental development scale

CDCC婴幼儿智能发育量表的编制

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13、

On the Chinese-English Translation of Enterprise's Advocating Materials& An Example from the CDCF's Enterprise Publicizing Text Translation in the International Brand Cooperation

企业宣传资料英译&以常德卷烟厂品牌国际合作介绍材料的翻译为例

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14、

Purpose: To evaluate the radiological features and diagnostic value of the ulcer in the terminal ileum by colon double contrast radiography ( CDCR) and small intestine double contrast radiography ( SIDCR).

目的：探讨结肠和小肠双对比造影X线检查对回肠末端溃疡的影像表现及其诊断价值。

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15、

The CDCR has estimated that the solar projects will save taxpayers more than$ 55 million over the long term.

该部门预计此项目将在远期为纳税人节省超过5500万美元。

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16、

At the same time, it lays a solid foundation for test data interconnection among CDCs in Jiangsu Province for the future.

同时为今后全省各级疾控实验室的检验数据互联互通奠定了一定的基础。

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17、

Objective To investigate and analyze the situation and countermeasures of information system development in the CDCs of Guangdong Province on municipal and county level.

目的调查分析广东省市、县级疾病预防控制中心信息化建设现状与发展对策。

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18、

The capacity of emergency handing in public health event of county CDCs in three provinces in middle and western regions

中西部三省县CDC应急处置公共卫生突发事件能力调查

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19、

Analysis on Current Status of CDCs in 18 Quake-hit Counties in Sichuan After Wenchuan Earthquake

5·12汶川大地震后四川省18个重灾县疾控机构现状

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20、

In response, Beijing mandated producers to sell directly to local CDCs.

中国政府因此要求生产厂家直接向地方疾控中心销售疫苗。

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