protasion

Study on sex differentiation of the protasion and cranial variables of adult Macaca Mulatta in Taihang Mountains;

猕猴颅骨变量和面角的性差研究

Development of 167 dtex/38 f trilobal section bright soft package textured yarn;

167 dtex/38 f三角截面极亮松筒加弹丝开发

Students Understanging of Dihedral Angle and Dihedral Angle Plane Angle Concept;

中学生对二面角和二面角平面角的认知

Relating to, having, or forming a dihedral angle.

二面角的关于、具有、或构成二面角的

helical rake angle

(铣刀的)轴向刀面角

range of contoured surface angle of copying turning

仿形车削型面角范围

He was cast as the villain in the play.

他在戏里扮演反面角色。

flat square

平面直角,[港]平面方角

the trigonometry of spherical triangles.

球面三角形的三角学。

spherical trigonometry

球面三角 (法,学)

round edge external corner

(釉面砖) 二面圆边外角

tetrahedral pentagonal dodecahedro

四面体式五角十二面体

The angle between the plane of the ecliptic and the equatorial plane is the obliquity of the ecliptic.

黄道面与赤道面的夹角是黄道的倾角。

any triangular sail set forward of the foremast.

在最前面的三角形的帆。

triangular shaped wire

断面为三角形的钢丝

cocked hat ; hat with the brim turned up on three sides

三角帽（帽檐三面卷起的）.

It's on the corner opposite the post office.

它在邮局对面的拐角。

in diagonally opposed quarters of an escutcheon.

纹章盾面对角地四等分。

Hexagon nuts with raised face

GB/T804-1988球面六角螺母

fracture of roll

轧辊表面的裂缝(掉角)