triple rates system三重: tripling; ter; treble; three ...制: make; manufacture运价制定（程序）: rate making ( procedure )三重运费制: treaty freight system运价制定机制: price making mechanism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:三重运价制，即可在微信中查询翻译
