Based on the analysis of the material expenses of construction item of middle and small water conservancy enterprise, this paper approaches the effective measures to control the material expenses.是什么意思_Based on the analysis of the material expenses of construction item of middle and small water conservancy enterprise, this paper approaches the effective measures to control the material expenses.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句