480.Unfold the sheeting carefully ( )

457.用 03-002 滑油润滑新的封严组件。 ( )

456.在 2850psi 压力下,泵的流量为 10gpm。( )

455.The flap angles are specified in Table 1 ( )

454.Fire can occur by flammable fluid, it endanger the airplane( )

453.The hydraulic system supplies power to the actuators ( )

452.fill the hydraulic tank with the specified hydraulic fluid( )

451.小心不要导致衬套损坏。 ( )

450.连接万用表到电流测量感应器输出端。 ( )

449.Generally, the wheels of airplanes are attached to the shock struts, and oil or air is used by the struts to relieve the impact of landing ( )

448.如果机翼上的所有扭力管未连接,则使用适配器单独的驱动每个襟翼。 ( )