The problem of satellite-to-satellite tracking (SST) separation parameter be discussed in two aspects.

从两个方面讨论了低轨卫星在做卫-卫跟踪（SST）观测时，星间隔的选择问题。

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The unit will also provide extra satellite communications support in global "hot spots" without having to build costly permanent satellite tracking sites, they added.

该工作站也将在全球“热点”地区提供额外的卫星通信支持，而不必建造昂贵的永久卫星跟踪站点，他们补充道。

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They will fire darts from small air rifles to collect blubber and skin for genetic testing,and to attach satellite-tracking tags to monitor the whales.

VOA: standard.2010.01.05

Following the Welsh discovery, marine ecologists at Swansea University and University College Cork used satellite-tracking systems to follow 10 leatherbacks from their nesting sites in the tropics.

BBC: NEWS | UK | Wales | Mystery of Wales turtle 'solved'

Even though steering-wheel locks, satellite tracking and immobilisers had helped to reduce car thefts, trade in stolen parts remained a problem.

ECONOMIST: Monitor

Botswana also boasts lower corporate taxes, an absence of exchange controls, simpler labour laws and little of the violent crime that prompts South Africans to fit their cars with alarms, satellite tracking devices and even flame-throwers.

ECONOMIST: The desert booms