534.Terms that contain a capital letter plus a noun, or a number plus a noun usually describe the shape or configuration of something( )

403.指针沿刻度垂直移动 ( )

402.Duct brackets attach the overhead distribution duct to the ceiling supports( )

401.驾驶舱初始紧急呼叫必须按下头顶面板上的紧急呼叫按钮。这将初始驾驶舱和所有客舱站位之间通讯的共享连 接。( )

400.L1 entry door number 1 floor panel has a 1-inch notch 6 inches from the forward right edge( )

399.确保液压油不会穿透插座。( )

398.Equivalent substitutes can be used( )

397.Individual wire identification codes are established to assist in tracing circuitry ( )

396.Some models have this function, but some do not ( )

395.单向活门是液压或气动部件,允许流体在一个方向上完全流动,但阻止所有反向流动。( )

394.Soak the element for four hours( )