unconsolidated sand 中文意思是什麼
unconsolidated sand
解釋
非膠結砂巖- unconsolidated : 非固結的
- sand : n 1 沙。2 〈 pl 〉 沙灘，沙洲，沙地，沙漠。3 〈 pl 〉 沙粒；（計時用的沙漏中的）細沙。4 光陰，時...
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The test results show that the drawing interval of 1. 5 m is helpful for controlling dead - unconsolidated thin sandstone of coal seam roof and reduce sand ratio of drawn top - coal
試驗結果表明，放煤步距採用三采一放有利於控制頂板極鬆散細砂巖，降低放出頂煤的含砂率。 -
Wudaoliang group is grayish - white, yellow - grey, dark - grey ash rock, which interbeded with the conglomerate, sandstone, a little amount mudstone, oil shale with unconsolidated sand mud rock
五道梁群以灰白色、灰黃色灰巖為主，含有礫巖、砂巖，夾有少量泥巖、油頁巖和未固結砂泥沉積。
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