45ºmitred joint 45º斜接缝 a complete 成套设备 a lamination stack 一叠铁心 A-A enlarged A-A 放大 A-A section A-A 剖面 abbreviation 缩写 abscissa X-axis 横坐标 absorbent 吸附剂 absorption ratio of insulation resistance 绝缘电阻吸收比 acceleration 加速度 acceptance inspection 验收检验 accessories 附件 accuracy 准确度 accuracy class 准确级次 accuracy limit factor 准确限值因数 acetic acid ethylic 醋酸 acetone 丙酮 acetone extraction of insulating material 绝缘材料丙酮抽出物 acetylene 乙炔 acid value 酸值 acryl 丙烯 active aluminium oxide (activated alumine) 活性氧化铝 active part assembly 器身装配 additional insulation of lead 引线附加绝缘 additional loss 附加损耗 admittance 导电率 air (water) cooler 风(水)冷却品 air core reactor 空心电抗器 air exhausting pipe 导气管 air gap 空气隙 alignment对中心(不对中心) alkyd base lacquer 酚醛漆 aluminium-alloy conductor 铝合金导线 ambient temperature 环境温度 angle 角钢(槽钢)