inputs are logic 1.                                     輸人為邏輯1時，輸出為邏輯0。

NAUTICAL AIR MILES (NAM), The actual air distance       空海里 （NAM），

flow expressed in nautical miles without respect to a     以海里來表示的飛機在空中所飛過的實際空中飛行距

stationary object.                                      離。空海里無需參考地面物體。

NAUTICAL GROUND MILES (NGM), The distance               地海里（NGM），

travelled in relation to the ground expressed in nautical 以海里來表示的飛機相對于地面所飛過的距離。

miles.

NAUTICAL MILE, A distance equivalent to 6076.1 feet     海里，

or 1852 meters.                                           相當于 6076英尺或 1852米的距離單位。

NAVIGATION, The art of determining the geographical     導航，

position and maintaining desired direction of an aircraft 決定飛機的地理位置和保持飛機相對于地球表面所希

relative to the earth's surface.                        望的方向的技術。

NEGATIVE LOGIC, A form of logic in which the more       反邏輯，

positive voltage level represents logic 0 and the more    正電壓水平越是代表邏輯0，負電壓水平則越是代表邏

negative level represents a logic 1.                    輯1的一種邏輯形式。

NEGATIVE RELIEF VALVE, A valve in the                   負釋壓活門，

pressurization system for preventing cabin altitude to be 增壓系統內，用來防止機艙高度超過飛機高度（或機艙

above airplane altitude (or cabin pressure to be below  壓力低于外界大氣壓力）的活門。

ambient pressure).

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英漢對照民用航空詞典                                   BOEING

NEOPRENE, An oil and grease-resistant synthetic     氯丁橡膠，

rubber. Used mostly for seals and self lock nuts, etc. 一種耐油和油脂的合成橡膠。多用作密封裝置或自鎖螺

                                                    帽，等。