back cone angle

基本解釋

The device is posterior cutter grinding to drill in cone surface grinding method that it can vouch for drill with reasonable back angle, and symmetry precision is high.
本裝置采用圓錐表面磨法對鉆頭進(jìn)行后面刃磨，可保證磨出的鉆頭具有合理的后角，對稱精度高。
It shows that the effects of back pressure on penetration, spray cone angle, and decline rate of centerline velocity and concentration of the spray are greater than that of fuel injection pressure.
背壓對貫穿距離、噴霧錐角、噴霧軸心速度和濃度衰減率的影響均大于啟噴壓力。