He was watching a game of tennis on a televisionmonitor.
他那时正在电视监控器上观看一场网球赛。
《柯林斯英汉双解大词典》
2
The monitor frontend of broadcast television is the basic composition unit of a broadcast televisionmonitor network, and the controller is the core of the entire monitor front end.
广播电视监测前端是广播电视监测网的基本组成单位，而控制器则是整个监测前端的核心。
3
A laparoscope (a tiny telescope connected to a video camera) is inserted through the cannula, giving the surgeon a magnified view of the patient's internal organs on a televisionmonitor.