F2AST is a follow up to the existing Flexible Acquisition &Sustainment Tool (FAST) and Integrated Weapon System Support Programs (IWSSP) contracts.是什么意思_F2AST is a follow up to the existing Flexible Acquisition &Sustainment Tool (FAST) and Integrated Weapon System Support Programs (IWSSP) contracts.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句