明暗相间的环 alternately dark and bright rings
交流放大器 alternating current amplifier
交流发电机 alternating current generator
交流机 alternating current machine
交流发电机 alternating current motor
交流变压器 alternating current transformer
交流〔电子〕管 alternating current tube
交流电 alternating current? (a.c.)
交变位移 alternating displacement
交变电动势 alternating electromotive force
两光交换法 alternating light method
往复运动 alternating motion
交流放大器 alternating current amplifier
交流发电机 alternating current generator
交流机 alternating current machine
交流发电机 alternating current motor
交流变压器 alternating current transformer
交流〔电子〕管 alternating current tube
交流电 alternating current? (a.c.)
交变位移 alternating displacement
交变电动势 alternating electromotive force
两光交换法 alternating light method
往复运动 alternating motion
变量,交变量(2)交错量 alternating quantity (1)
交流电压 alternating voltage
交变陡度聚焦原理 alternating-gradient focusing principle
交变陡度透镜 alternating-gradient lens
交变陡度磁聚焦 alternating-gradient magnetic focusing
交替,变换,交流 alternation
交流发电机 alternator
高度计,测高仪 altimeter
地平纬度(2)高度,海拔 altitude (1)
竖直度盘(2)地平经圈 altitude circle (1)
测高计 altitude gauge
阿特曼改进型〔目录〕 Altman modification
超短脉冲 altrashort pulse
明矾 alum
明矾晶 alum glass
镍铝锰合金(高温热电偶材料) alumel
铝土,矾土 alumina
硼硅酸铝玻璃 alumina borosilicate glass
铝合金 aluminium alloy
锑化铝 aluminium antimonide
砷化铝 aluminium arsenide
铝垫片,铝底座 aluminium backing
铝膜 aluminium coating
铝箔灯 aluminium foil lamp
铝反射膜 aluminium mirror coating
氧化铝(Al2O3) aluminium oxide
氧化铝坩埚 aluminium oxide crucible
铝涂料,铝涂层,铝〔银灰〕漆 aluminium paint
铝 aluminium? (AL)
镀铝荧光屏 aluminium-coated Pyrex