coated limestone 中文意思是什麼
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The aggregate used for the longtan hydropower project is crushed from limestone, and the surface of aggregate presents the coated - powder phenomenon easily in the course of transportation
摘要龍灘水電工程使用的粗骨料為石灰巖碎石，在運送過程中骨料表面容易產生裹粉現象。
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