用“radio beam”造句大全,radio beam造句
1、Like the searchlight beam, the radio beam cannot be made very sharp; it tends to spread.
2、Ironically, the detailed reasons as to how the radio beam is produced may not be important astronomically.
1、Like the searchlight beam, the radio beam cannot be made very sharp; it tends to spread.
2、Ironically, the detailed reasons as to how the radio beam is produced may not be important astronomically.