YAW RATE, The rate at which the airplane moves 偏航率，

around the vertical axis (left, right).         飛機(jī)繞偏航軸運(yùn)動(dòng)的速率。

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英漢對(duì)照民用航空詞典                             BOEING

Z

ZENER DIODE, A special type of diode which, when 齊納二極管，

reverse biased, has a constant voltage drop. This 又稱穩(wěn)壓二極管，是一種電子裝置。正常電流可通行無

property makes zener diodes useful as voltage 阻，但反向電流則必須在電壓達(dá)到預(yù)定值之后才能通過。

regulators.                                  在飛機(jī)電器系統(tǒng)內(nèi)做為調(diào)壓器之用。反向偏壓時(shí)，它有一

                                             個(gè)恒定的電壓下降。

ZERK FITTING, A device through which oil or grease is ZERK接頭，

supplied for lubrication of moving parts.       ZERK公司出品，用以接收滑油或潤滑脂，以潤滑活

                                             動(dòng)部件的裝置。

ZFW, SEE - ZERO FUEL WEIGHT                  無燃油重量，

                                               見Zero Fuel Weight．

ZERO FUEL WEIGHT, The maximum allowable weight 無燃油重量，

excluding usable fuel.                         扣除可用燃油重量之后的最大允許重量。

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