A privateer was usually limited to tracking down one particular ship for a certain period of time.
私掠船船员通常只在一段时间内追踪一艘特定的船舶。
CNN 10 学生英语 2019年1月合集
So, a lot of our customers are commercial enterprises who are setting up new applications for communication, for tracking ships, for mobile communication.
所以,我们的许多客户都是商业企业,他们正在开发通信、船舶跟踪和移动通信的新应用程序。
BBC 听力 2017年3月合集
US officials say there've been a series of incidents in the Strait of Hormuz in which Iranian vessels have come close to a patrolling US navy tracking ship designed to monitor missile tests.
Missile Range Instrumentation Ships, Range Ships, or Tracking Ships, are ships equipped with antennas and electronics to support the launching and tracking of missiles and rockets. Since many missile ranges launch over ocean areas for safety reasons, the Range Ships extend the range of shore based tracking facilities.