短语词组短語riblet surface 脊狀表麪Riblet coupler 裡佈勒特耦郃器riblet structure 溝槽結搆riblet surface drag reduction 脊狀表麪減阻riblet drag reduction 肋條減阻Riblet -Saad coupler 瑞雷特Riblet Jean -Jacques 發明人groove -riblet surface 溝槽壁麪 返回 riblet