短语词组短语curved spring bar 弧形表壳耳簧curved -bar grillage 曲杆梁格curved profiled bar 弯型杆curved type bar screen machine 弧形格栅除污机spatial curved bar 空间曲杆an elastic curved bar 弹性曲杆space curved bar 空间曲杆curved bar spreader 弓形展毯辊;弧形舒展辊 返回 curved bar