The superiority (优势) of radar to ordinary vision (普通视力) lies in the greater distances at which seeing is possible with radar.
The superiority (优势) of radar to ordinary vision (普通视力) lies in the greater distances at which seeing is possible with radar.
/module/audioplay.html?objectid=4ea5a26be099d2541570bdfd4970482a/module/audioplay.html?objectid=b4d729edd5d1b536749d7f16359ee989: There are 32 degrees of sectors which cannot be scanned by the radar.|There are 65 degrees of sectors which cannot be scanned by the radar.|There are no areas which cannot be scanned by the radar.|There are some areas which cannot be scanned by the radar.
/module/audioplay.html?objectid=4ea5a26be099d2541570bdfd4970482a/module/audioplay.html?objectid=b4d729edd5d1b536749d7f16359ee989: There are 32 degrees of sectors which cannot be scanned by the radar.|There are 65 degrees of sectors which cannot be scanned by the radar.|There are no areas which cannot be scanned by the radar.|There are some areas which cannot be scanned by the radar.
二次监视雷达解释正确的是 A: second surveillance radar B: secondary surveillance radar C: primary surveillance radar D: precision approach radar
二次监视雷达解释正确的是 A: second surveillance radar B: secondary surveillance radar C: primary surveillance radar D: precision approach radar
Aircraft position reports are ______ if ATC can see an aircraft on radar.
Aircraft position reports are ______ if ATC can see an aircraft on radar.
“Radar” is an example of acronym.
“Radar” is an example of acronym.
Radar is better than GPS.
Radar is better than GPS.
Radar、DNA都是首字母拼读词。
Radar、DNA都是首字母拼读词。
4. Radar makes the most accurate determination of the ___ ___.
4. Radar makes the most accurate determination of the ___ ___.
Radar is an example of acronym. A: True B: False
Radar is an example of acronym. A: True B: False
Radar makes it possible and much safer for us to sail __.
Radar makes it possible and much safer for us to sail __.