512.每一节从右边页面开始。 ( )

425.Use an oil can to lubrication the turnbuckle ( )

424.Vertical pages rather than horizontal are preferred for all types of publication ( )

423.Replace nuts and washers if removed during inspectionDo not reuse ( )

422.将旁通活门和排放活门同时拆解。 ( )

421.The slow moving , high pressure air from the compressor is fed into the combustor or burner where it is mixed with a highly flammable fuel and ignited( )

420.Every time he comes up with a new idea, he writes it down in his notebook ( )

419.确信每个电门下方的琥珀色的 VALVE CLOSED 灯关闭。 ( )

418.Monitor the speed indication continuously until the end of the test ( )

417.Operate the actuator through three cycles ( )

416.Send reports to the authorities at intervals of three months( )