[经] estimated cost of machineries and materials payable

zàn gū yìng fù jī liào kuǎn ㄗㄢˋ ㄍㄨ ㄧㄥˋ ㄈㄨˋ ㄐㄧ ㄌㄧㄠˋ ㄎㄨㄢˇ