In this paper,calculating empirical formula of muzzle noise of the firearms are carried by use of the mathematical analytical method based on large number of experimental studies.是什么意思_In this paper,calculating empirical formula of muzzle noise of the firearms are carried by use of the mathematical analytical method based on large number of experimental studies.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句