dinas英'diːnəs美'diːnəsCOCA¹⁶⁹⁴⁴⁷BNC⁴⁶⁸⁸⁴ 基本例句 n.砂石¹⁰⁰原型dina的复数 Although the class of artificial dinas is low, it is possible to compound dense concrete of high quality if proper compounding rate is chosen. 虽然人工砂石的级配较差，但只要选择合适的混凝土配合比，是完全可以配制出高性能的自密实混凝土。 dictall