参与的制药公司在产品包装上凸刻一种特殊编码，消费者可以通过刮开涂层获得这种编码。

Participating drugs companies emboss a special code onto packages, which customers find by scratching off a coating.

youdao

加工方式：蚀刻、阴刻、蚀凹纹底、凹字、凸字蚀刻烤漆、上色、卡典贴色。

Processing: etching, incised, corrosion intaglio bottom concave, convex, word word etching paint, color code, color card stickers.

youdao

加工方式：蚀刻、阴刻、蚀凹纹底、凹字、凸字蚀刻烤漆、上色、卡典贴色。

Processing: etching, incised, corrosion intaglio bottom concave, convex, word word etching paint, color code, color card stickers.

youdao