In the mass production era multinational firms tended to centralize their operations.在大规模生产的时代，跨国公司往往实行集权化经营。These precise instruments have already gone into mass production.这些精密仪器已经大规模投入生产.The development of a suitable ...
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...