帮忙把下面的中文翻译成英文，不要用软件，谢谢~

The system consists of a microcontroller with the A / D converter module and the Watchdog module, sensitive components, the front small-signal amplifier circuit, electrical display, keyboard circuit, sound and light alarm circuit, the mode switching circuit, power circuit, the relay control circuit, etc.composition. Which microcontroller as the core of the system, complete the data collection, processing, output, display and other functions; content of the sensitive element of the dual channel mode for accurate detection of smoke, the output voltage signal corresponding to the smoke concentration; small signal amplifier circuit is used to enlarge the sensitive components of the output voltage; display circuit is used to display the concentration of smoke; keyboard circuit is used to adjust the alarm limits and silencers; alarm circuit is used to gauge smoke sound and light alarm; mode switching circuit for switching measuring what kind of combustible smoke (liquefied petroleum gas, hydrogen, methane); provide a stable voltage power supply circuit for the system; relay control circuits need to leave behind for user extensions.

灌水。。。难道我会告诉你我小学英语不及格？