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据报道,南非迪尔公司Som chem分公司正在研制一种新型155mm PRO-RAM远程炮弹,用52倍口径155mm火炮发射时至少可达70km。Som chem公司在2001年前,已完成了子系统的试验,其中包括风洞试验和冲压喷气25s发射试验。
According to reports, South Africa’s Deere Som Chem branch is developing a new 155mm PRO-RAM long-range artillery shells, with 52 times the diameter of 155mm artillery fired at least up to 70km. Som chem has completed subsystems testing by 2001, including wind tunnel testing and ramjet 25s launch tests.