单词arc-back
n.: 逆弧
逆弧
a circular-arc back rendering.
书背呈现圆弧形。
Kinematics and dynamics analysis about double horse head pumping unit with arc back horse head
后驴头为圆弧的双驴头抽油机运动与动力分析
Heat flow measurement and distribution of East China Sea and Ryukyu Trench Arc Back-Arc system
东海及琉球沟弧盆系的海底热流测量与热流分布