OIL SEPARATOR, A device used to separate unwanted 滑油分離器，

air from engine oil returning to a sump or oil tank. 一個能從回油槽或油箱發(fā)動機滑油中分離出不需要的

                                                  空氣的裝置。

OIL STRAINER, Type of oil filter.                 滑油篩，

                                                     滑油油濾的一種。

OLEO STRUT, SEE - SHOCK STRUT                     油液減震支柱，

                                                     見Shock Strut．

ONSIDE, Same side.                                同面，

                                                     相同的一面。

OMEGA NAVIGATION SYSTEM (ONS), A worldwide,       奧米加導(dǎo)航系統(tǒng)（ONS），

all weather navigation system.                       一個全球范圍內(nèi)全天候的導(dǎo)航系統(tǒng)。

OPEN CIRCUIT, An electrical circuit which is not  開路，

continuous from power supply to ground due to a break 由于線路中斷或組件損壞而導(dǎo)致從電源到接地點之間

in the wiring or failure of a component.          不通的電路。

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英漢對照民用航空詞典                                    BOEING

OPERATING EMPTY WEIGHT (OEW), The weight of          使用空重（OEW），

an airplane fully serviced, including the crew but without 一架勤務(wù)完畢的飛機，包括空勤人員，但不含燃油和業(yè)

fuel and payload.                                    載的重量。