natural rock asphalt 中文意思是什麼
natural rock asphalt
解釋
瀝青巖-
Specification for mastic asphalt natural rock asphalt fine aggregate for roads and footways
道路與人行道用地瀝青砂膠 -
Determination of bitumen - content in natural rock - asphalt powders and masitc asphalts with " kumagawa - asphalt " method
用熊本瀝青法測定天然巖瀝青粉和砂膠瀝青的瀝青含量
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