First results from the encounter, announced at the American Astronomical Society meeting in Pasadena, suggest the asteroid, small though it is, is covered with a layer of dust.
美国天文学会在帕萨迪纳市(美国加州)的会议上,发布了罗塞塔号行经司琴星时传回的第一批观测成果。 结果显示,司琴星尽管体积不大,其表面却覆盖有一层尘土。
With the world's sustaining care on security, Video Surveillance System is being a more and more important role in every layer of society as the safe guarding method.
随着世界对安全的不断关注,视频监控系统作为重要的安全防护手段越来越深入到社会生活的各个层面。
Thereinto, SAE(Society of Automotive Engineers) has set down J1939/11783 applying for truck and bus. At the same time, there was no uniform CAN higher layer protocol applying for HEV by now.
美国工程师协会(SAE)针对载货车和大客车制定了SAE J1939协议,但是针对混合动力汽车却没有统一的CAN应用层协议。
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