These satellites can take 20-meter resolution images in swaths exceeding 100 kilometers, and transmit those digital images to earth stations.
卫星可以自体运行,也可作为更大的系统如卫星编队或卫星星座中的一环。
Satellites can operate by themselves or as part of a larger system, a satellite formation or satellite constellation.
现代卫星可以看到云层以下的情况,这对损害评价和灾后规划恢复工作至关重要。
Modern satellites could see below the clouds, which was essential for damage assessment and the planning of recovery efforts after disasters.
目前,小卫星可以通过“捎带”在一家大公司购买的火箭上并挤进有空间的地方来搭便车。
Currently, small satellites can hitch a ride by going“piggyback” on a rocket purchased by a larger company and squeezing in where there's space.
卫星可以生成污染空气的气体和颗粒的日常全球地图。
The satellite can produce daily global maps of the gases and particles that pollute the air.
在不久的将来,通信卫星可以为全世界提供宽带互联网。
In the near future, communications satellites could provide the whole world with broadband internet.
NASA总部首席科学家EllenStofan表示,小型卫星可以减少位于太空观测地球设备的成本。
Ellen Stofan, chief scientist at NASA Headquarters,explained that small satellites can reduce the costs of space-based Earth observations.
Robertsville卫星可以在轨道上停留一年左右,然后坠向地球并在大气层中燃烧。
The Robertsville satellite could stay in orbit for about a year before plunging back to Earth and presumably burning up in the atmosphere.
举例来说,通信卫星可以敏感地响应千分之一度每小时的细微角速度。
For example, a communications satellite can be sensitive to angular velocities as small as one thousandth of a degree per hour.
卫星可以提供完全独立于当地的电信基础设施的通信服务,从而使其较理想地适合于灾害紧急情况和救济工作。
Satellites could provide communications services independently of the local telecommunications infrastructure, making them ideally suited for disaster emergency and relief work.
火箭运动到远地点后在那里点火,并继续环绕轨道飞行,以便卫星可以开始向客户销售数据。
The spacecraft coasts to apogee,where the rocket fires and circularizes the orbit so that the satellite can begin selling data to customers.
卫星可以为边远村庄提供通讯联系,并可以向贫穷社区提供气象信息和教育服务。
Satellites can provide communication connectivity to remote villages, including meteorological information and education services for poor communities.
巨大的星座和巨型卫星可以保证更加持续的发射速度。
The massive constellations and the giant satellites could guarantee a much more sustained launch pace.
未来,卫星可以捕获老化的航天器,然后把它们拉到更高的轨道上――那里地球引力较弱。
Future satellites could capture aging spacecraft and then drag them up into higher orbits, where the pull of Earth's gravity is weaker.
小型卫星可以由低成本的部件组装而成,并由一枚火箭发射。
Small satellites can be assembled from low-cost components and released by the dozen from a single rocket.
但是使用卫星可以减少远程连接所需的可信任节点数量。
But passing satellites could cut down on the number of trusted nodes that are needed to connect distant points.
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