351 alternating and direct square-waves argon arc welding machine  351型交直流方波氩弧焊机

351 alternating and direct square-waves argon are  351型交直流方波氩弧焊机; 通光孔径

a c alternating current  交流电

AC (alternating current) electric drive  交流电子传动

aerobic gradually turn into anaerobic alternating process  好氧渐变厌氧交替工艺

almost alternating link  m-几乎交错环链

almost alternating rational link  几乎交错有理环链

altemating copolymerization  交替共聚

altemating load  交变载荷; 乙二胺

altenating displacement  交变位移

Alterating notch periodogram algotithm  交替陷波周期图法

alterating speed grinding  变速磨削

alternating accident  交流事故

alternating accumulator  交流蓄电池

Alternating Activated Sludge Process  交替活性污泥工艺; 交替式活性污泥工艺; 铕

alternating activity  交替活动

alternating and direct current desalting  交直流电脱盐; Sauter平均直径

alternating and flashing  互闪光

alternating arc  交流电弧