LIMIT SWITCH, A mechanically operated component in        極限電門，

an electric actuator which turns off electrical power to    在電作動筒內，用以在作動簡到達打開或關閉位置

the actuator when the actuator reaches its open or        時，切斷電源的機械式操作的部件。

closed position.

LIMITATIONS, Performance and operational limits           各種極限，

listed in the Airplane Flight Manual (AFM), such as         飛機飛行手冊（AFM ）中列出的性能限度和操作極限，

maximum airspeed, maximum altitude and center of          如最大空速，最大高度，和重心的限制等。

gravity constraints.

LINE REPLACEABLE UNIT, A unit which can be readily        航線可換件，

changed on an aircraft during line maintenance              在航線維修中，可以在飛機上即時拆換的部件。

operations.

LINE SELECT KEYS, Switches on the FMCS control            行選鍵，

display unit allowing control of information to and from    飛機管理控制系統的控制顯示器上的電門，可控制草稿

the scratch pad and designated areas of the display.      欄和指定顯示處信息的輸人和輸出。

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英漢對照民用航空詞典                                     BOEING

LINEAR VARIABLE DIFFERENTIAL TRANSFORMER,             線性可變差動變壓器，

A differential transformer with a linear response.      具有線性反應的差動變壓器。

LINK, A short connecting rod for transmitting motion. 連桿，

                                                        連接在兩個部件之間，用以傳遞運動的短棒。

LNAV, SEE - LATERAL NAVIGATION                        水平導航，

                                                        見Lateral Navigation．

LOAD AND TRIM SHEET, A form containing tables and     載重和平衡表，

charts to account for the weight and balance effect of all 有著顯示每個航班前飛機的各項業載和所加燃油對重