?抗摩金属 anti-friction metal
?抗垢剂 anti-incrostation material
?防爆振 anti-knocking
?锑 antimony
?减摇装置 anti-motion device
?减纵摇装置 anti-pitching device
?防[止汽水共]腾管 anti-priming pipe
?反共振 anti-resonance
?减[横]摇装置 anti-rolling device
?减摇水舱 anti-rolling tank
?减[横]摇水舱 anti-rolling tank
?防腐剂 antiseptics
?抗垢剂 anti-incrostation material
?防爆振 anti-knocking
?锑 antimony
?减摇装置 anti-motion device
?减纵摇装置 anti-pitching device
?防[止汽水共]腾管 anti-priming pipe
?反共振 anti-resonance
?减[横]摇装置 anti-rolling device
?减摇水舱 anti-rolling tank
?减[横]摇水舱 anti-rolling tank
?防腐剂 antiseptics
?消侧音,防侧音(电) anti-side tone
?抗松装置 anti-slack device (ASD)
?反潜舰 anti-submarine ship
?抗摇装置 anti-toppling device
?铁砧 anvil
?铁砧 anvil block
?美国油料化学工程师学会 AOCS (American Oil Chemists‘ Society, U.S.A.)
?螺桨拱,孔,口 aperture
?美国公共健康协会 APHA (American Public Health Association, U.S.A.)
?美国石油学会 API (American Petroleum Institute, U.S.A.)
?器具,仪器 apparatus
?视弯曲强度 apparent bending stress ( or modulus of rupture)
?视螺距 apparent pitch
?视横摇 apparent rolling
?视滑流 apparent slip
?视滑流比 apparent slip ratio
?外观速度,视速度 apparent velocity
?视波高 apparent wave height
?视波长 apparent wave length
?似波周期,视波周期 apparent wave period
?视重 apparent weight
?附属物 appendage
?附属物阻力 appendage resistance
?附属物尺度效应系数 appendages scale effect factor
?用具 appliance
?外施电压 applied voltage
?学徒,实习生 apprentice
?实习轮机员 apprentice engineer
?实习航海员 apprentice officer
?实习无线电员 apprentice radio operator
