苏联提供的第一批飞机297架（一个歼击机大队、一个轰炸机大队）于1937年10月至1938年2月陆续飞抵兰州。进行交接后飞赴全国各战区。图为交接时的合影。

297 aircrafts in the first batch are provided by Soviet Union ( one fighter brigade and one bomber brigade ) successively arrived in Lanzhou from October of 1937 to February of 1938. These aircrafts flied to each war zone in China after handing - over . Group photo at the handing - over is shown in the picture .

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