關於helicoid的百科

• involute helicoid造句怎麼寫

• basecylinderofinvolutehelicoidwormbasediameterofinvolutehelicoidwormThesphericalinvolutehelicoidequationanddividingsphericalhelicoidequationofgrindingwheelareestablished.Thehelicalmotionparametersandhelicoidleadaregiven.Abstract:Inthispaper,theformul...
• 2018-07-0630796