In-line roller skates 直排轮滚轴溜冰鞋
in-line roller follower 对心滚子从动件
in-line roller skater 一字型旱冰鞋
roller skating in-line 直排溜冰鞋
GT roller coaster in Abu Dhabi sends two Ferrari F430 Spider carriages sprinting along twisting parallel tracks on a race to the finish line. [link].
阿布扎比gt过山车使把两辆法拉利f 430蜘蛛放在过山车的并行赛道上比赛谁先到终点。
PROFILE: The true picture of a surface in relation to a horizontal line; a contour of a designated surface of a cup, cone, or roller.
型面轮廓：与水平线相比表面的实际轮廓线；实际设计的外圈，内圈或滚子的轮廓线。
An on-line optimizing control and management of processing of roller-hearth furnace have been realized in the rolling plant using PCS7 control system.
采用PCS7控制系统在轧钢厂实现了辊底式热处理炉钢坯生产过程的在线优化控制和管理。
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