1、

The prominent characteristic of the siliceous rock is the residual bioclastic structure, with plenty of silicified calcareous organisms, such as brachiopoda, encrinite caudex and coral, which are several millimeters in size.

其显著特征是,岩石具残余生物碎屑结构,见大量腕足类、海百合茎、珊瑚等钙质生物假象,主要为mm级完整个体,密集堆积。

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2、

Aimed at resolve the several problems which affect drilling efficiency, such as balling up and calcareous cementation, the design of blade bits was modified.

针对钻头包泥堵钻和钙质胶结层难以进尺等影响钻进效率的几个问题,对刮刀钻头结构进行了改进设计,并取得了令人满意的效果。

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3、

Some ll and overy phosphatic microfossils from South China the residual effect of phosphatic fertilizer in calcareous soil

华南兰多维列世几种磷灰质微体化石石灰性土壤中磷肥后效的研究

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4、

The direct result of interaction of liquid and reservoir rock is the precipitation of calcite and dolomite, which will occupy some pore space of the source rocks and create cements, then the calcareous incrustation will be formed.

流体与储集岩作用的直接结果是方解石和白云石沉淀到储集岩中,它们将占有原岩的部分孔隙空间,形成胶结物,进而形成钙质结壳。

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