The ionosphere is that region of space contatining electrically charged species.电离层是指含有带电物质的空间区域.Its upper limit is determined by the conditions in the ionosphere.其上限由电离层的状态而决定.Rockets and artificial satellites can go fa...
Its upper limit is determined by the conditions in the ionosphere.其上限由电离层的状态而决定.The ionosphere is a complex medium, which is aeolotropy, asymmetry, dispersive and changes randomly with time.电离层是随机时变, 各向异性, 非均匀 、 色散的复杂介质....
All China is littered with dry faggots which will soon be aflame.中国是全国都布满了干柴,很快就会燃成烈火.The entrance hall is littered with toys and wellington boots.门厅里到处乱扔着玩具和雨靴。...a team clearing an area littered with unexploded ordnanc...