查询词典 spherical angle

angle at the center：中心角

"极向角","angle" | "中心角","angle at the center" | "角度规","angle gage"

double angle bar：双角摇杆双角钢

double angle 双角铁 | double angle bar 双角摇杆双角钢 | double angle fomula 倍角公式

angle bar strap：衬角铁

angle at zenith 天顶角 | angle bar strap 衬角铁 | angle bar 角铁

angle between chord and tangent：弦和切线的角

angle at center 圆心角 | angle between chord and tangent 弦和切线的角 | angle function 角函数

angle bisector：角平分线 ;分角线

angle bisection 角平分 | angle bisector 角平分线 ;分角线 | angle in the alternate segment 交错弓形的圆周角

angle brace：角撑

angle bending machine 弯曲机 | angle brace 角撑 | angle bracket 角铁托

angle brace：斜撑

angle block 角铁 | angle brace 斜撑 | angle bracket 角形托座

angle brace：隅掌, 角铁撑, 角撑

angle block | 角铁, 弯板 | angle brace | 隅掌, 角铁撑, 角撑 | angle bracket | 角撑架, 角铁托, 角形托座

angle brace：角铁撑,角撑

angle block 角铁,弯板 | angle brace 角铁撑,角撑 | angle of elevation 仰角

angle bracket：角撑架

angle block 转向滑车 | angle bracket 角撑架 | angle bracket 角钢托坐

Going to Pubs：上酒吧小酌

Part V 夜生活篇 Nightlife | Unit 21 上酒吧小酌 Going to Pubs | Unit 22 看表演 Seeing Shows

simplified equation：简化方程式

secondary alcohol 仲醇 | simplified equation 简化方程式 | tertiary alcohol 叔醇