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- The square wave source is an impulse source in which digital technique is used.It has the advantages of rigid phase, high frequency stabilization and high antijamming. 方波电源是采用数字技术的脉冲电源,具有相位严格、频率稳定度高,抗干扰能力强等独特的优点。
- A detectable impulse(voltage,current,magnetic field,or light impulse) by which information is com municated through an electronic or optical means,or over wire,cable,microwave,or laser beams. 一种可检测的脉冲(电压、电流、磁场或光脉冲),用以通过电或光纤设备,或经过电线、电缆、微波或激光束进行信息通信。
- A detectable impulse(voltage, current, magnetic field, or light impulse)by which information is com municated through an electronic or optical means, or over wire, cable, microwave, or laser beams. 一种可检测的脉冲(电压、电流、磁场或光脉冲),用以通过电或光纤设备,或经过电线、电缆、微波或激光束进行信息通信。
- A detectable impulse(voltage, current, magnetic field, or light impulse) by which information is com municated through an electronic or optical means, or over wire, cable, microwave, or laser beams. 一种可检测的脉冲(电压、电流、磁场或光脉冲),用以通过电或光纤设备,或经过电线、电缆、微波或激光束进行信息通信。
- A detectable impulse (voltage, current, magnetic field, or light impulse) by which information is com municated through an electronic or optical means, or over wire, cable, microwave, or laser beams. 一种可检测的脉冲(电压、电流、磁场或光脉冲),用以通过电或光纤设备,或经过电线、电缆、微波或激光束进行信息通信。
- RFI or EMI can be caused by sources such as TV or radio broadcast signals or it can be caused by impulse sources, as in the case of high voltage arcing (see Figure 3-5). RFI和EMI可能由诸如电视或无线电广播等信号源引起,也可能由脉冲信号源引起,就象高压电弧的情况那样(见图3-5)。
- I groped for the light switch in the dark room. 我在黑暗的房间里摸索着找电灯开关。
- The portrait shows fine effects of light and shade. 这幅肖像画的浓淡色调表现得很好。
- A red light is usually a signal of danger. 红灯通常是危险的信号。
- Rated lighting impulse withstand voltage 雷电冲击耐压
- Now I begin to see light on their good intentions. 现在我对他们的良好动机开始有所领会了。
- The bright light of the car dazzled me. 这汽车的灯光使我目眩。
- Rated lighting impulse withstand voltage(peak) 额定雷电冲击耐受电压(峰值)
- He turned off the dash light and drove on. 他关掉仪表板上的灯,继续驱车前进。
- The light was diffused by the leaves. 树叶使光线漫射。
- I grope for the light switch in the dark room. 我在黑洞洞的屋里摸索著寻找电灯开关。
- The light bulb in the kitchen burnt out. 厨房里的电灯泡烧坏了。
- A strong light impinged on his eyes. 一道强烈的光刺着他的眼睛。
- He can see a glimmer of light through the curtain. 他能透过窗帘看到一丝微光。
- She runs up the stairs with a light graceful step. 她以轻快优雅的步子奔上楼去。