flexible bag软油箱flexibleadj.柔韧的；灵活的；易弯曲的；可变通的flexible drill steel挠性钢钎flexible code system柔性编码系统flexible jumper hose挠性跨接软管flexible driven gear挠性从动齿轮Flexible arch bridge柔性拱桥flexible integration柔性集成flexible valvulotome软式瓣膜刀flexible paddle pump柔性叶片泵flexible spacecrafts挠性航天器flexible power cable柔性电力电缆