Judging target main attack direction is an important link in air defence artillery campaign command.
判断目标的主攻方向，是防空兵作战指挥中的重要环节。
A senior defence official said last night that they would continue the air strikes.
一位高级国防官员昨晚说他们将继续空袭。
There can be no real defence against attacks from the air.
对来自空中的攻击是无法设防的。
An order was suddenly given for a practice air - raid defence.
突然下达了一个防空演习的命令。
An order was suddenly given for a practice air - raid defence.
突然下达了一个防空演习的命令。
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