The engine will need to be completely checked.
这台发动机需要彻底的检修一下。
RussAir officials told Russian news agencies that the plane, made in 1981, had been completely checked before take-off and there had been no technical issues with the aircraft.
RussAir官方告诉俄罗斯新闻社，这架于1981年生产的飞机起飞前做过全面检查，飞机的技术状况良好。
The electrical connections have to be installed completely and checked.
必须完整地安装电气连接并检查。
应用推荐