电流滞后于电压.The current lags behind the voltage.如果输入的电压是+3伏, 那么输出的电压便是-6伏.If the input voltage is plus three , it comes out as minus six.我们用以表示电压和电流的单位分别为伏特和安培。The units in which we show voltage and current are volt and ampe...
To keep your bearings in a desert sandstorm is impossible.在沙漠的尘暴中要想保持方位感是不可能的.His plane made a crash-landing during a sandstorm yesterday.昨天他的飞机在沙尘暴中紧急降落。The men lost their way in a sandstorm and crossed the border by mi...
They've got to watch every penny to make ends meet.他们得精打细算才能维持下去.She scarcely earns enough money to make ends meet.她几乎挣不到足够的钱以维持开支.Last month he couldn't make ends meet.上个月他钱花涨了....
The PCI and ISA buses are designed into motherboard as expansion slots.PCI和ISA总线都作为扩展槽设计在主板内.Spring loaded coned pins shall be used for two - way and four - way datum holes and slots.配有弹簧的锥形销被使用为 双向 和四向方式的基准孔和槽孔.Slots t ...