Twitchange是一项为期10天的拍卖活动，本次活动由eBay承办，网友可以通过eBay的在线拍卖系统Kompolt进行竞拍，拍卖已于上周末结束。 参加本次拍卖的有著名演员、音乐家和体育明星等100多位社会名流，每个人都可以对他们自愿提供的推文喊价，价高者得。
Twitchange was a 10-day auction that ended last weekend where anyone could bid on more than 100 famous actors, musicians and sports stars volunteering their tweets.
该系统提供了增强的互操作能力，能与其他AWACS平台如战斗机、地面站、舰船和卫星等进行互操作。
The system offers increased interoperability with other AWACS platforms as well as with fighter aircraft, ground stations, ships and satellites.
分析结果表明，系统引入的噪声随着所观测恒星星等的增加而增加。
The result illustrates that the noise error increases with the increase of the magnitude of the star.
以前，人们主要利用太阳、星星等自然天体。现在人们利用的导航系统主要有：天文导航系统、惯性导航系统、无线电导航系统三大类。
At ancient times, people were navigated by means of sun, fixed stars, etc., while currently the common navigation systems are astronomic navigation, inertial navigation and radio navigation.
在这种原始行星系统中间，尘埃颗粒逐渐生长，并凝聚成行星、彗星等。
Dust grains grow rapidly in the disks and gradually condense into planets, comets, and so on.
系统互连需要通过各种有线、无线或卫星等通信线路及相关设备组成的通信设施实现。
Interconnection systems through a variety of wireline, wireless or satellite communication lines and related equipment, components of the communication facilities to achieve.
军用密封电磁继电器是广泛应用于运载火箭、导弹、卫星等武器装备系统与航天系统中的关键元器件，工作环境的复杂性要求其必须具备良好的耐力学性能。
In this paper a finite element model of hermetically sealed electromagnetic relay is built, through normal modes analysis and frequency response analysis, the vibration transitive path is studied.
军用密封电磁继电器是广泛应用于运载火箭、导弹、卫星等武器装备系统与航天系统中的关键元器件，工作环境的复杂性要求其必须具备良好的耐力学性能。
In this paper a finite element model of hermetically sealed electromagnetic relay is built, through normal modes analysis and frequency response analysis, the vibration transitive path is studied.
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