随着我国汽车工业的高速发展,安全行车十分重要。为此我们试制了“汽车多用报警器”。它可在气压低于安全值时发出报警提醒司机防止车祸;在机油压力小或无时发出报警保护发动机;在司机忘记关电门 With the rapid development of China’s automobile industry, safe driving is very important. To this end, we trial-produced a “car alarm.” It can alarm when the pressure is lower than the safety value to remind the driver to prevent a car accident; when the oil pressure is low or no alarm is issued to protect the engine;