A aeronautical radio system航空无线电系统A-60 fire door A－60级防火门AFC (approved for construction)建造批准
a-hundred-year return period百年一遇aforementioned上述的abrasive（喷砂用的）磨料aft winch船艉绞车abrasive paper砂纸agitator搅拌器
AC generator交流发电机air blower鼓风机
AC motor交流电动机air compressor空压机accelerated corrosion testing加速腐蚀试验air driven pump气动泵acceptance criteria合格准则air hoister气动绞车access hole (for welding)
= cope hole（焊接）工艺孔air manifold气包accommodation and
power platform (APP)生活动力平台air tight test气密性试验according to = in accordance with =
in line with = as per = in the
light of按照air-hose风带acetylene gas乙炔aircraft obstruction beacon航空障碍灯acid electrode酸性焊条alarm buzzer报警蜂鸣器acid proof cement防酸水泥alarm horn报警喇叭additive添加剂aliphatic polyurethane脂肪族聚氨酯漆adhere to遵守(动词)allowable(working) stress许用应力adherence to遵守(名词)Aluminum alloy anode铝合金阳极adjacent columns相邻立柱Aluminum ingot铝锭
adverse combination of loads荷载的不利组合aluminum paint银粉漆adverse condition不利条件aluminum sheet铝皮
ambient air temperature环境气温API specified requirements API规定的要求ambient temperature环境温度apparent batter视斜度
:
anchor block地锚块applicable API specification API 适用规范
anchor bolt地脚螺栓approach-departure sector直升飞机起落
扇形区
anchor ground锚地appurtenance =attachment =accessory
=auxiliary附件
anchor pile锚桩arc air gouging碳弧气刨anchor profile/pattern涂装表面的粗糙度arc cutting电弧切割anchor rack锚架arc strike弧击anchoring buoy锚泊浮筒argon arc welding氩弧焊
angle of incidence入射角argon arc welding machine氩弧焊机angle of reflection折射角articulated tower mooring system铰接塔系泊系统angle probe method超声波斜射探伤artificial island人工岛
angle steel角钢as per按照
angle valve角阀as-built 完工
anode core阳极芯子as-built dossier完工资料anode end face geometry阳极端面几何形状as-built drawing完工图
anode life阳极寿命as-rolled轧制状态anode potential阳极电位assemble组装（动词）anode stand-off post支架式阳极的立柱assembly组装（名词）anodic resistance阳极电阻associated gas伴生气
anti-electrostatic floor防静电地板at the option of A按A的意愿
anticorrosive paint防锈漆atmospheric diving system
= unpressurized diving system常压潜水系统
antipollution measures防污染措施atmospheric vent放空管attachments附件
auto fire alarm system火灾自动报警系统
automatic spraying system自动喷淋系统
:。