It uses a successful example of the investment in high strength low relaxation PC strand by Xinhua metal products Co.,Ltd.to summerize the methods of the scientific policy for investment.是什么意思_It uses a successful example of the investment in high strength low relaxation PC strand by Xinhua metal products Co.,Ltd.to summerize the methods of the scientific policy for investment.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句