2959. Usually, the hydraulic fluid flows into the valve through port A and out through port B

404. The approved words were selected because they were simple and easy to recognize

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。