Vehicle scheduling problem with hard time windows (VSPHTW) is a variation of vehicle scheduling problem (VSP), which is a typical NP-hard problem.是什么意思_Vehicle scheduling problem with hard time windows (VSPHTW) is a variation of vehicle scheduling problem (VSP), which is a typical NP-hard problem.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句