通过将传感器与电脑相连，人可以可以带着这个设备在吸气时选择屏幕上的字母，从而打印出词和句子。
By connecting the sensor to a computer, a person wearing the device can use sniffs to select letters on a screen to build up words and sentences.
一种用于通气系统的压力驱动器，包括气体源、吸气流量控制阀和患者压力传感器，以形成闭环控制系统。
A pressure driver for a ventilation system comprises a gas source, an inspiration flow control valve and a patient pressure sensor to form a closed loop control system.
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