“顶杆”的拼音？

为批量生产带有螺纹的尼龙旋塞,设计了一种带有螺旋顶杆的旋塞注塑模.Mold with spiral ejection pin was designed for the mass production of threaded nylon cock.所述长顶杆的前端最好为锥形头.The front end of the long post rod is at best in a cone shaped head.随着温度升高, 感温元件(阀...

“顶杆”的英语可以翻译为：[工] ejector pin，knock-out pin，carrier rod，crown bar，mandril ...