packaging engineeringpackaging science and technology程: rule; regulation包装工程实验室: packing engineering lab首席包装工程师: principal packaging engineer包装工: bagger包装工厂: packaging plant; packaging unit下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:包装工程,即可在微信中查询翻译