1) chalky layer
白垩层
1.
The chalky layer from the oyster shell studied,was found to be a natural micro-porous structure material calcite,with which the hydroxyapatite was synthesized in the phosphatic solution at 90℃ water bath heating and atmospheric press.
研究发现牡蛎白垩层是一种天然方解石质多孔微结构材料,并以其为原料,采用水热法在90℃水浴、常压条件下与磷酸氢二铵溶液反应生成羟基磷灰石。
2) Eocretaceous
[,i:ə'kretə,siəs]
始白垩层
3) Cretaceous red bed
白垩纪红层
4) Cretaceous red strata
白垩系红层
1.
It is well known that Changsha Pingjiang basin of Cretaceous red strata is an area short of water.
长（沙）—平（江）白垩系红层盆地，公认为贫水地区。
5) Eocretaceous
[,i:ə'kretə,siəs]
始白垩层(地)
6) the cretaceous stratum
白垩系地层
1.
Obtained temperature decreases data of the cretaceous stratum in the region for the first time in certain freezing conditions,by monitoring the freezing process of Lingdong coal mining auxiliary shaft,in Zhalainuoer mining site.
通过对扎赉诺尔矿区灵东煤矿副井的冻结监测,首次得到了该地白垩系地层在特定条件下的降温数据。
补充资料：白垩,磨细白垩粉,白垩粉
CAS：1317-65-3
中文名称：石灰石；电石灰岩；石灰石粉；霰石,文石；方解石,碳酸钙晶体；碳酸钙,白垩；白云石,白云岩,石灰岩；石灰石,石灰石；大理石,大理岩,云石,玻璃球；波特兰石；白垩,磨细白垩粉,白垩粉
英文名称：Limestone；Agstone；agricultural limestone；aragonite；atomite；bell mine pulverized limestone；calcite；calcium carbonate；carbonic acid, calcium salt；chalk；dolomite；domolite；franklin；lithograpic stone；marble；natural calcium carbonate；portland stone；sohnhofen stone；whiting；limestone,powder；flux lime
中文名称：石灰石；电石灰岩；石灰石粉；霰石,文石；方解石,碳酸钙晶体；碳酸钙,白垩；白云石,白云岩,石灰岩；石灰石,石灰石；大理石,大理岩,云石,玻璃球；波特兰石；白垩,磨细白垩粉,白垩粉
英文名称：Limestone；Agstone；agricultural limestone；aragonite；atomite；bell mine pulverized limestone；calcite；calcium carbonate；carbonic acid, calcium salt；chalk；dolomite；domolite；franklin；lithograpic stone；marble；natural calcium carbonate；portland stone；sohnhofen stone；whiting；limestone,powder；flux lime
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参考词条