阅过《内燃机车》1975年第4期中的“空转撒砂电路小改”一文后,我认为空转撒砂线路经这样一改,确实是有些好处的。若在新加的导线中再加上有关联锁(例6ZJ反与LJ反),更为必要。这样可消除只要蜂鸣器一响就撒砂的缺点(因为蜂鸣器响,除空转外,还有6ZJ和LJ等动作都响),即有利机车清洁保养,又可避免不必要的浪费。 After reading the article “A Little Change in Spin Sanding Circuit” in “No. 4, 1975,” “Diesel Locomotives,” I think it is true that such a change in idling and sanding lines is indeed beneficial. If the new wire plus the relevant interlock (6ZJ anti-anti-LJ anti), more necessary. This eliminates the buzzer buzzer as long as the sand and the shortcomings (because the buzzer ring, in addition to idling, there are 6ZJ and LJ and other actions are ring), that is conducive to locomotive cleaning and maintenance, but also to avoid unnecessary waste.