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日本九二式7.7mm重机枪是在三年式6.5mm重机枪的基础上增大口径改进而成,主要是为了弥补三年式重机枪在威力上的不足。主要改进之处是将U形握把及扣动式扳机改成
Japan nine two 7.7mm heavy machine guns in the three-year 6.5mm heavy machine guns to increase the caliber to improve, mainly to make up for the three-year heavy machine guns in the power shortage. The main improvement is the U-shaped grip and the trigger into action