直流电( direct current的名词复数 );
The currents of air that the walls of the ship direct upwards, as well as in line of its course are enough to give the great bird with its immense wings sufficent sustenance and progress.
沿着船壁向上引导的以及与航行方向一致的气流足以给这种长有特大翅膀的大鸟以充分的支撑力和前进力.
Solid-state devices are always powered by direct currents and voltages.
固体状态设备总是以直流和电压为动力.
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