The drum also contains the photoconductor supply and takeup spools. 鼓还包括光电导体电源和提升卷轴。
The three wires were fed from the three spools and wound as one wire; thus comprising the trifilar terminology. 三条线从三个线轴出来绕成一条线,从而符合三线并绕的要求。
It required three spools, each containing approximately 900 feet of number 27 Heavy Formvar wire for the primary sections. 这个工作需要三个线轴,每个上面有900英尺27号线来绕制初级绕组。
A spool of slightly less than 100 feet of number 17 Heavy Formvar wire was required for the secondary winding. 一卷大约100英尺的17号线足够完成次级绕组。