Li Xianyong normal every day maintenance tasks in the same time, played hard at studying infrared protection.
李宪永在每天完成正常检修任务的同时，埋头钻研起了红外线保护装置。
An engine at idle for extensive periods of time could dramatically shorten the life of your plugs, causing you to spend hard-earned money on unnecessary service and maintenance.
在空闲的时间广泛时期引擎可以大大缩短你的插头的生活，让你把钱花在不必要的服务和维护来之不易的钱。
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