Life cycle sustainment support for the M109 FOV is currently provided by multiple government and commercial organizations using many different processes to deliver both services and materials.是什么意思_Life cycle sustainment support for the M109 FOV is currently provided by multiple government and commercial organizations using many different processes to deliver both services and materials.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句