Space Policy Directive-3 lays out general guidelines for the United States to mitigate the effects of space debris and track and manage traffic in space.

《空间政策指令3》为美国制定了一般性指南，以减轻空间碎片的影响以及跟踪和管理太空交通。

youdao

Use the entrants log sheet to keep track of personnel entering and leaving confined space. 

使用进入者日志表来跟踪人员进入并留出有限的空间。

youdao

TCN manages air, land, space and surface mission domains and can track both low - and high-velocity targets.

TCN管理空中、地面、空间和水面等领域的任务，并可以对低速和高速的目标进行跟踪。

youdao

They came away unpersuaded of the space-track rationalization for this radar.

CENTERFORSECURITYPOLICY: Center for Security Policy | Radargate: Soviet Admission Of An ��Open�� Treaty Violation Makes Fools Of American Apologists

HS2 will free up track space on the Midland Main Line.

BBC: HS2: Minister defends route plan

This is now the 17th-largest telescope in the world and is used to track space debris another application where the inability to point the telescope does not really matter that much.

ECONOMIST: Mirror, mirror