?容许强度 allowable strength
?容许应力 allowable stress
?容许值 allowable value
?裕度,容许[公]差,配赋量 allowance
?裕度试验 allowance test
?合金钢 alloy steel
?合金元素 alloying element
?全周灯 all-round light
?全波接收机 all-wave receiver
?[天文]历 almanac
?沿岸 along shore
?交变负荷 alternate (or alternating ) load
?容许应力 allowable stress
?容许值 allowable value
?裕度,容许[公]差,配赋量 allowance
?裕度试验 allowance test
?合金钢 alloy steel
?合金元素 alloying element
?全周灯 all-round light
?全波接收机 all-wave receiver
?[天文]历 almanac
?沿岸 along shore
?交变负荷 alternate (or alternating ) load
?交变应力 alternate (or alternating ) stress
?交流发电机 alternate current generator (or alternator)
?交互堆积法(焊接) alternate deposition
?交流电 alternating current ( A.C.)
?交流发电机 alternating current generator
?交流电动机 alternating current motor
?交流装载法 alternating loading
?交变应力 alternating stress
?加改装规范 alternation specification
?交流发电机 alternator
?高度计 altimeter
?高度 altitude
?高度计 altitude gauge
?铝青铜 aluminium bronze
?铝合金 aluminum alloy
?铝阳极 aluminum anode
?铝青铜 aluminum bronze
?铝护面钢板 aluminum clad steel
?铝护面钢 aluminum clad steel
?铝箔 aluminum foil
?铝漆 aluminum paint
?铝喷敷 aluminum spray coating
?周围压力 ambient pressure
?周围温度 ambient temperature
?周围环境下试验 ambient test
?美国空调协会 AMCA (Air Moving and Conditioning Association, U.S.A.)
?修正图 amendment plan
?美国验船协会 American Bureau of Shipping (ABS)
?美国标准线规 American standard gauge
?美国线规 American wire gauge