砾岩主要砾石成分为燧石，磨圆度较好，普遍含金刚石。
Chert with good abrasion the major content in conglomerate and diamonds are contained in it generally.
砾岩主要砾石成分为燧石，磨圆度较好，普遍含金刚石。
Chert with good abrasion is the major content in conglomerate, and diamonds are contained in it generally.
上述阶地、沙嘴和湖岸堤的沉积物主要由磨圆度和分选性较好的砂或砂砾石组成。
The land spit and lake terrace are formed by the sand and grit which have good polish and select.
由于黄河水的长距离搬运作用，颗粒磨圆度高、表面强度低；孔隙率高，毛细作用剧烈。
It has high psephicity, low surface strengths, high porosity and intensive capillarity because of the long transport function of the water.
由于黄河水的长距离搬运作用，颗粒磨圆度高、表面强度低；孔隙率高，毛细作用剧烈。
It has high psephicity, low surface strengths, high porosity and intensive capillarity because of the long transport function of the water.
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