“involute helicoid”可以造什么句，involute helicoid造句
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base diameter of involute helicoid worm
Abstract: In this paper, the formula of calculation of the axial profile of an involute helical gear( or an involute helicoid worm) is inferred.
The spherical involute helicoid equation and dividing spherical helicoid equation of grinding wheel are established. The helical motion parameters and helicoid lead are given.
base cylinder of involute helicoid worm
