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- A soft, porous limestone, composed essentially of fragments of shells and coral, used as a building material. 贝壳灰岩一种质软、多孔的灰岩，基本上由贝壳及珊瑚的碎片构成，用作建筑材料
- A soft,porous limestone,composed essentially of fragments of shells and coral,used as a building material. 贝壳灰岩一种质软、多孔的灰岩，基本上由贝壳及珊瑚的碎片构成，用作建筑材料
- and there must be a permeable reservoir rock, such as sandstone or porous limestone, to provide passage and storage for the oil and gas. 所以在附近就必须具有透水的储存岩石，如砂岩和具孔隙的石灰岩，为石油和天然气提供通道和贮存场所。
- First, ore is mixed with coke and limestone. 先把铁矿石和焦碳、石灰石混合在一起。
- We may burn limestone to obtain lime. 我们可以通过烧石灰石来得到石灰。
- Any of several tough, porous leather substitutes. 通气性强的塑料几种粗糙的多孔的皮革代用品
- He added sand to the soil to make it more porous. 他往土里掺了些沙子以提高渗水性能。
- Limestone cliffs; limestone walls. 石灰岩峭壁; 石灰岩墙
- porous limestone 多孔灰岩
- Caves form when water infiltrates limestone. 水渗透石灰石则形成洞穴。
- In hot weather clothes made of a porous material like cotton are best. 热天穿棉布之类有渗透性的材料做的衣服最为适宜。
- Limestone is rock composed of calcium carbonate. 石灰石是由碳酸钙所构成的岩石。
- The limestone absorbs impurities from the ore. 石灰石从矿石中吸收杂质。
- In hot weather cloths made of a porous material like cotton are best. 热天穿棉布之类有渗透性的材料制成的衣服最为适宜。
- The area is being quarried for limestone. 这地方正在开采石灰石。
- To lap better, all porous holes. 上面净是气孔，便于舔食。
- The limestone must be calcined in such a way. 石灰石必须煅烧到这样地步。
- Screen Test for DCP , Limestone and Salt. 筛选检验磷酸氢钙;石粉和食盐.
- He add sand to the soil to make it more porous. 他往土里搀沙子以提高渗水性能。
- The randomness is attributed to the porous medium. 随机性起因于多孔介质。
