明文

míng wén gōng bù

明文公布

announce in written form

míng wén guī dìng

明文规定

stipulate in explicit terms

xiāo fèi zhě quán yì de bǎo zhàng yǐ yǒu fǎ lǜ míng wén guī dìng

消费者权益的保障已有法律明文规定。

Protection for the consumer is laid down by statute.