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在69、70年时,我们去四方机车车辆工厂搞教育革命。当时四方厂正在搞新造国际车。国际车的乘务员向四方厂的同志们控诉了修正主义者在客车照明问题上对我们的挑衅。我国的铁路客车在解放后虽然有了很大的发展,但供电系统却一直沿用老式的L型直流发电机。这种电机的恒压是靠平皮带打滑来完成的。平时输出功率就比较小,在零下30℃-40℃的冰雪严寒中,发电机电压就更低,有时由于皮带打滑发电机根本就不发电。因此,使本来就不亮的灯光更加暗淡。有的外国人就利用这一点对我们大加嘲弄。
At 69 and 70 years, we went to the Sifang Locomotive and Rolling Stock Works to carry out the educational revolution. Sifang plant was engaged in a new international car. The flight attendant of the international car complained to the comrades of the Sifang factory about the provocations our revisionists challenged us in the issue of bus lighting. Although China’s railway passenger car developed greatly after the liberation, the power supply system has been using the old-style L-type DC generator. The constant pressure of this motor is accomplished by flat belt slippage. Usually the output power is relatively small, minus 30 ℃ -40 ℃ in the freezing cold, the generator voltage is lower, sometimes because the belt slip generator does not generate electricity. Therefore, the dim light is dim. Some foreigners make use of this to make a big mockery of us.