40. That portion of the system which is used to distribute high or low pressure air to using systems Includes items such as ducts, valves, actuators, heat exchangers, controls, etc Does not include the supply valves to the using systems

3323. Differences in design and complexity of the various type sand models of airplanes play a major role in deciding whether a specific malfunction is more appropriately listed under emergency" or "abnormal" procedures"

3322. The separate and independent subsystems used to provide illumination in case of primary electrical power failure Includes items such as inertia flashlights, lanterns, etc

3321. THE VERB TENSE

3320. 确保钢索的张力是正确的

3319. 这是该类型紧固件的典型安装程序

3318. When the meter shows 28 volts dc, the relay closes

3317. Those units and components which furnish a means of pressurizing, heating, cooling, moisture controlling, filtering and treating the air used to ventilate the areas of the fuselage within the pressure seals, as applicable

3316. Move the panel into position

3315. High-time airplanes, disassembled for major overhaul, were inspected to assist in selecting inspection items

3314. Bare metal surfaces are usually satisfactory for an electrical bond