pulse counter measurement脉冲计数: step-by-step counting测量: survey; measure脉冲计数率测量装置: pulse counting rate assembly负脉冲计数: negative counting脉冲计数: step-by-step counting◇脉冲计数器 [电子学] pulse counter; impulse counter; impulse scaler; scaler下载手机词典可随时随地查词查翻译