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东海县黄川公社临洪联中本着少花钱、多制教具的原则,两年多来,共自制各种教具三百九十件。其中物理教具一百六十六八九十五种,化学教具五十七件
Donghong County, Huangchuan Commune, Lin Hong in the principle of spending less money and making more teaching aids. Over the past two years, it has produced a total of 390 teaching aids. One hundred and sixty-six thousand ninety-five physics teaching aids and fifty-seven chemical teaching aids