一个是车组武器项目，现在被称为未来车组武器项目，项目编号为XM307；

One was the Objective Crew Served Weapon, now known as the Advanced Crew Served Weapon and designated XM307;

youdao

一个是车组武器项目，现在被称为未来车组武器项目，项目编号为XM307；

One was the Objective Crew Served Weapon, now known as the Advanced Crew Served Weapon and designated XM307;

youdao