null device
英 [nʌl dɪˈvaɪs]
美 [nʌl dɪˈvaɪs]
空设备，零（型）装置
双语例句
- If the result is null, the subscription is not associated with a valid subscriber device and therefore could not be assigned to a delivery channel.
如果结果为null，则订阅不与有效的订阅方设备关联，因此无法分配给传递通道。 - The signal generator null sensitivity affects the accuracy and resolution of measurement because the gyro is an integrating device.
因为陀螺是一种积分装置，所以信号发生器的零位灵敏度影响测量精度和测量分辨度。