Road asphaltum, cement, rolled steel, enginery lease out operation.道路沥青 、 水泥 、 钢材及机具租赁业务.This alter - quality solvents presents starlike in asphaltum, and its size and distribution will influence capability.这些改性剂呈星点状分散在沥...

asphaltum的音标：asphaltum的英式发音音标为：['æsfæltəm]asphaltum的美式发音音标为：['æsfæltəm]...

n.沥青，柏油，石油沥青，地沥青...