neck-in meaning in English

缩进扭弯内缘内缩量

Metal packages ; three - piece tin - plate or black - plate , cylindrical , necked - in aerosol cans
金属包装.第3部分:三件式镀锡铁皮或黑铁皮制圆柱形向
Standard guide for three - piece steel and tinplate straight - wall and necked - in aerosol cans
三铰钢和马口铁制直壁和边缘向内弯曲的气溶胶罐标准导则
Light gauge metal containers - three - piece necked - in tinplate aerosol cans - dimensions of the top end
小型量规金属容器.三件式向内弯曲马口铁气溶胶罐.顶端尺寸