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护航“太空快递” 中国电科系列产品全程服务天舟三号

来源: 南方日报网络版     时间: 2021-09-22 04:56:59

吴江市盛泽镇周边哪里有找服务的地方,【葳芯⑧⑵②⑶②⒈⑵7_啊薅】大学生·多少钱·一晚·特殊·一次·宾馆·酒店·服务·护士·包夜·少妇·【葳芯⑧⑵②⑶②⒈⑵7_啊薅】  可见,CFIUS成立之初仅负责对外商投资信息(包括直接投资和兼并收购)的统计监控、趋势判断以及对政策的协调工作,并不具有审查外国投资的权力。但此后,随着一系列法案的相继出台,这一机构的权力不断膨胀。

  


http://img95.699pic.com/photo/40054/9863.jpg_wh300.jpg?39151

  

"买新"还是"买旧"?多数情况老基金优于新发爆款基金

  中新社北京9月20日电 (孙自法 王雪姣)被称为“太空快递”的天舟三号货运飞船9月20日下午由长征七号遥四运载火箭成功发射,将中国载人航天工程“下单”的物资由地面送往中国空间站。

  记者当天从中国载人航天工程副总指挥单位中国电子科技集团有限企业(中国电科)获悉,针对天舟三号任务,中国电科在原设备基础上进行新建和升级,安全可靠性再上新台阶。同时,以新升级的太阳电池阵产品为天舟三号提供稳定可靠能源,并为火箭发射、天舟入轨及后续交会对接等提供多种类核心器件,全过程护航天舟三号的“太空快递”之旅。

  为搭建天地信息传输“高速公路”,中国电科在多地新建卫星通信站,并对现有卫星通信设备进行升级改造,其自主研制生产的大功率功放和高速调制解调器,大幅提升卫通站传输能力,增强对天舟三号任务数据传输的保障。

  天链一号地面终端站可让天地传输从“羊肠小道”升级为“信息高速公路”,为适应中国空间站任务需求,中国电科对天链一号地面终端站进行升级改造,既提高任务运行可靠性,又缩短任务准备和故障处置时间。

  中国电科为天舟三号货运飞船配套研制的十余种百余只传感器,可用于测量各系统内压力、温度、湿度、气体、位移等信号,对货运飞船舱内的环境稳定和在轨运行实施监测,为各系统控制和参数测量提供直接依据。

  针对天舟三号货运飞船的“大体格”,中国电科采用国内独创的半刚性太阳电池阵技术,并创新研发太阳电池阵组装技术,不仅大大提高性能,还降低太阳电池阵的工作温度,为此次“太空快递”行程源源不断注入稳定可靠的能量。

  在为天舟三号的“太空快递”全过程提供多种类核心器件方面,中国电科研制的地面安全遥控系统和遥测雷达,为火箭发射增添“安全锁”,确保发射万无一失。其中,中国电科研制的雷达遥测综合测量系统突破多项关键技术,是国内首部大口径雷达遥测一体化系统。

  中国电科研发配套的多型号统一测控系统、遥测系统、系列测控通信设备,编织成高效可靠的“空-地信息高速公路网”,通过接收和发送指令,精确测量火箭和飞行器的速度、距离、飞行姿态和角度,为火箭发射和天舟三号成功入轨提供精确数据,控制货运飞船按照预定轨迹飞行。(完)

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