The site construction ration is the quota of labors, machines and materials consumed in construction work for completing one qualified unit product under reasonable and normal construction conditions.是什么意思_The site construction ration is the quota of labors, machines and materials consumed in construction work for completing one qualified unit product under reasonable and normal construction conditions.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句