英国伦敦铁路工程学院发明了一种控制煤尘的新方法，可大大减轻煤炭在运输过程中对环境的污染。这种新方法非常，单，它是用一层薄膜罩住煤炭。制造薄膜所用的原料是旧汽车轮胎和油罐中取出的油脚。先将旧轮胎粉碎并与油脚混合，再用蒸汽烘烤混合物，使橡胶溶化；冷却后再加一 London Institute of Railway Engineering has invented a new method of controlling coal dust, which can greatly reduce the environmental pollution caused by coal transportation. This new method is very simple, it is covered with a thin film of coal. The raw materials used to make the film are the oil feet removed from old car tires and tanks. First crush the old tire and mixed with the oil feet, and then steam the mixture, so that the rubber melt; cooling plus one