eightfold rotational symmetry  八次准晶

non-rotational symmetry drawing  非回转对称拉深

Part Rotational Symmetry  零件对称性

spin-rotational symmetry  自旋转动对称

symmetry and centro-symmetry  对称与中心对称

symmetry and non-symmetry  对称及非对称

symmetry with not-symmetry encrypt calculate way  对称和非对称加密算法

1-rotational  1-可旋转

2-D ESPRIT(estimation of signal parameters via rotational invariance techniques)  二维ESPRIT

3D rotational correction  三维旋转修正

3-D rotational effect  三维旋转效应

3-D rotational microscope  三维光学显微镜

3-DOF rotational parallel mechanism  三转动并联机构

90 degrees rotational bent pipe  90°旋转弯管

Absolute rotational stiffness  绝对旋转劲度

Adaptive Minimum Rotational Cost  自适应最小转换代价; 大麦哲伦云

Adjusting rotational speed and blade angle  丁硫氨酸亚砜胺; 变速-变角; 变速变角

adjusting rotational speed operation by frequency  变速运行

adjustment of rotational speed  转速调整