polychrome printing

• 套色印刷,多彩印刷法

polychrome printing的用法和样例：

例句

1. Machine efficiency is enhanced with the no bottle detection and printing precision is ensured with circular bottle bi-positioning and ellipse bottle positioning devises.
   无瓶不印刷功能可以保证机器高速印刷之连续性，圆瓶二次定位印刷装置和扁瓶脱模管位均可保证套色印刷的准确性。