SIDE COWL, A removable cover around the sides of the 側整流罩，

engine for access to the components on the engine.     發(fā)動機兩側，被移開后可以夠到發(fā)動機部件的可卸罩

                                                     子。

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SIGHT GLASS, A glass window for observing fluid        檢查窗，

quantity in the reservoir of a machine.                  用以觀察機器的儲液箱內(nèi)液量的玻璃窗。

SIGNAL, An electrical quantity, such as a current or   信號，

voltage, that can be used to transport information for   電量的一種。如電流或電壓能用于傳送、通訊、控制或

communication, control, or calculation.                計算需要的信息。

SILICON CONTROLLED RECTIFIER, An electronic            硅控整流器，

device allowing current flow in one direction after the  當其控制極受到脈沖后，允許電流向單一方向流動的電

device has been pulsed at the gate.                    子裝置。

SINGLE SHOT MULTIVIBRATOR, An electrical circuit       沖息多諧振蕩器，

which produces a pulse when triggered by an input        當一個輸人信號觸發(fā)電路時產(chǎn)生的脈沖的電路。又稱單

signal; a mono-stable multivibrator.                   穩(wěn)態(tài)多諧振蕩器。

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SIMPLIFIED FLIGHT PLANNING, Rapid determination      簡化飛行計劃，

of trip time and fuel using a chart providing these data 由提供旅途時間和燃油等資料的圖表，來迅速定出從松

for the entire flight profile from brake release to landing. 剎車到著陸的整個飛行所需的時間和燃油的過程。