hereafter

此后称之为

To mention or allude to something from this point forward in a text or speech, often in formal or legal documents.

在文本或演讲中从此时起提及或引述某事，常见于正式或法律文件。

此后命名为

To give a particular name or description to something from this point forward, typically in contracts or formal agreements.

从此时起给予某事物一个特定的名称或描述，通常用于合同或正式协议中。