在我們伟大領袖毛主席“抓革命,促生产,促工作,促战备”的伟大号召下,全国革命和工农业生产形势大好,到处是热气騰騰,莲蓬勃勃的革命景象。这对鉄路冷藏运輸提出了更高的要求。但目前,在我国大量运用的水冰保溫車,由于存在着加冰作业繁重、运轉周期长,車內溫度达不到冻貨运輸 Under the great call of our great leader, Chairman Mao, “grasping the revolution, promoting production, promoting work, and preparing for war”, the revolutionary situation in the country and the production of industrial and agricultural products are excellent. There are hot and vigorous revolutionary scenes everywhere. This puts forward higher requirements for refrigerated transport in Kushiro. However, at present, due to the heavy ice-carrying operations and the long operating cycle, the water ice insulation trucks that are widely used in China have not reached the temperature limit for transport of frozen cargoes.