1.
two-lobed epitrochoid rotary mechanism
双弧外旋轮线旋转机械
2.
two-lobed epitrochoidal working chamber
双弧外旋轮线工作室
3.
Research on the NC System of a Two-Wheel Upright Spinning Machine;
立式两旋轮车轮辋旋压机数控系统研究
4.
Technical Innovation of SY-11CNC three spinning rollers numerical spinning machine
SY-11CNC三旋轮数控旋压机床的技术改造
5.
helical gear with helix angle
带螺旋角的螺旋齿轮
6.
double helical (spur) gear
双螺旋齿轮，人字齿轮
7.
cross helical gear
螺旋齿轮, 交错斜齿轮
8.
A wheel revolves round [on] its axis.
轮子是绕轴旋转的。
9.
Wheels, tops and the earth rotate.
轮子、陀螺和地球均旋转。
10.
pulley for main grain auger
谷粒推运螺旋皮带轮
11.
spread-blade bevel gear cutter
螺旋伞齿轮切削刀盘
12.
spiral bevel gears with offset axes
轴线偏置螺旋伞齿轮
13.
Gleason spiral bevel gear cutter
格里森螺旋伞齿轮铣刀
14.
auger drive wheel
螺旋推运器传动链轮
15.
supercharged turboprop
增压涡轮螺旋浆发动机
16.
tri-lobe timed rotary gear pump
三叶同步旋转齿轮泵
17.
rotary-type cam-driven tableting press
旋转式凸轮驱动压片机
18.
A wheel revolves round/on its axis.
轮子是绕轴旋转的.