螺旋面n.螺旋面  helicoid

船体侧面投影面积  hull side area

复投影面投影  double plane projection

正面投影面积  frontal projected area

端面螺旋面  end helical surface

环面螺旋旋转变换  Torus screw rotation transformation

螺桨面积比  propeller area ratio

螺旋桨桨毂  propeller hub

螺旋桨桨叶  propeller blade

螺旋桨桨叶安装角  angle of propeller blade setting

螺旋桨桨叶面积  area of propeller

螺旋桨螺距  Propeller pitch

螺旋桨螺母  propeller nut

螺旋螺桨  spiral propeller

内旋螺旋桨  inward turning screw; inward turning propeller

蜗旋螺旋桨  spiral propeller

亚秒级螺旋螺旋CT  Subsecond spiral CT

右旋螺旋桨  clockwise propeller

左旋螺旋桨  left-handed screw; left-hand propeller; left-handed propeller