westbank angle bracket 角托架

westbank angle of torsion 扭转角

westbank angle of inclination 倾角

westbank angle plate 直角板

supplementary angle WESTBANK 辅助角

spiral angle WESTBANK 螺线角

spherical angle WESTBANK 球面角

westbank grinding angle 研磨角

slant angle WESTBANK 倾斜角

right angle WESTBANK 直角