medium grained sand 中粒沙 ; 中粒砂
medium-grained 中粒的 ; 中粒度 ; 中粒
medium-grained grinding stone 中粗磨石
medium grained asphalt concrete 中粒级配地沥青混凝土
medium-grained structure 中等粒状结构
Microscopically the ores are medium grained to amorphous.
显微镜下，矿石为中粒至非晶质。
Pores are closely correlated with sandstone fabric, and are more easily generated in medium grained sandstone where feldspar content is high(>37%) and cement content is low(carbonate<50%).
孔隙与砂岩组构密切相关，孔隙更容易产生于长石含量高（>37% ）、且胶结物含量低（碳酸盐<5 % ）的中粒砂岩中。
In the part of west flank of Lujiatuo minefield, the normal siltstone roof of coal seam 8 changed into coarse to medium-grained sandstone, and also had phenomenon of coal seam pinch-out.
吕家坨井田西翼部分区域八煤层顶板由正常的粉砂岩变为粗中砂岩，并有煤层变薄现象。
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