A magnesia-rich sedimentary rock resembling limestone .

白云灰岩一种似石炭岩,富含氧化镁的沉积岩

Material illustrating detailed structure of graptolites has been etched from limestone by means of hydrofluoric acid

表明笔石详细构造的物质是利用氢氟酸从石灰岩中侵蚀出来。

A thin, resistant limestone escarpment is present just basinward

薄层状的坚硬的石灰岩山崖正好位于靠盆地一侧。

Determination of total organic carbon in limestone

测定矿石中的有机碳化物的总含量

Determination of total organic carbon in limestone ;

测定石灰石中的总有机碳

Health standard for limestone dust in the air of workplace

车间空气中石灰石粉尘卫生标准

Dudley:a borough of west-central England west-northwest of Birmingham. It had thriving iron, coal, and limestone industries until the 1870's.

达德利:英格兰中西部城区,位于伯明翰西北偏西方向,在19世纪70年代前钢铁工业、煤炭工业和石灰工业十分兴旺.

Much of the higher reflecting alluvium and limestone fell along the toe portion of the characteristic curve

大部分反射率较高的冲积层和灰岩都位于特性曲线的趾部。

A metamorphic rock formed by alteration of limestone or dolomite,often irregularly colored by impurities,and used especially in architecture and sculpture.

大理石由石灰岩或白云岩变化而来的一种变质岩,常有不规则的杂质色块,专门用于建筑和雕塑

The answer is the same if the limestone overlays the sandstone.

当灰岩盖在砂岩上时,系数是相同的。

When these creatures died, their shells fell to the bottom and gradually built up thick layers of limestone . For this reason, fossils are commonly found in much limestone.

当这些生物死后,它们的外壳便会沉入水底并逐渐堆积成厚厚的石灰岩层,这就是为什么在石灰岩中经常可发现一些生物化石的原因。

Specification for mastic asphalt (limestone fine aggregate)for roads, footways and pavings in building

道路、人行道和建筑物铺面用地沥青砂胶(石灰石集料)规范

Rock,usually limestone ,composed of pisoliths.

豆石,豆岩由豆石构成的岩石,常为石灰岩

Multi-sources Information Fusion Method and Its Applications in Prediction of Water Inrush of Ordovician Limestone Aquifers in Colliery

多源信息融合技术在矿井奥灰突水预测中的应用

Carbon dioxide can be obtained from carbonates, limestone , the burning of organic fuels, and industrial fermentation.

二氧化碳可从碳酸盐、石灰石、有机燃料燃烧以及工业发酵过程中制得。

Limestone slowly frets away (out)under pounding by the wind and rain

风吹雨打使石灰石慢慢剥蚀掉了。

Stylolite: Sedimentary structure consisting of a series of relatively small, alternating, interlocked, toothlike columns of stone; it is common in limestone , marble, and similar rock.

缝合线:由一系列交替连结的齿状小石柱体组成的沉积构造,在石灰岩、大理石和类似的岩石中很常见。

In its compounds calcium has valence 2. It occurs in limestone , chalk, marble, dolomite, eggshells, pearls, coral, and many marine shells as calcium carbonate, or calcite; in apatite as calcium phosphate; in gypsum as calcium sulfate; and in many other minerals.

钙以方解石(碳酸钙)的形式存在于石灰岩、白垩、大理石、白云石、蛋壳、珍珠、珊瑚、钟乳石、石笋和许多海洋动物的壳体中。在自然界以磷灰石矿形式存在,还存在于许多其它矿物中。

calcareous sediments accumulated on a sea floor and eventually were compacted and cemented to form limestone

钙质沉积物堆积在海底,最后压紧并胶结形成石灰岩。

Ordovician Limestone Water Disaster in Gaocheng Coal Mine and Comprehensive Controlling Technology

告成煤矿奥灰水害及综合防治技术

A siliceous rock of chalcedonic or opaline silica occurring in limestone .

硅石出现在灰岩中的玉髓或蛋白色硅石

Water, containing dissolved calcium hydrogen carbonate, passes through the limestone and drops evaporate on the stalactite, increasing its length with a deposit of calcium carbonate

含有溶解碳酸氢钙的水通过石灰石滴在钟乳石上蒸发,随着碳酸钙沉积物的增加不断增加着它的长度。

The channel is overlain by siltstone and lenticular beds of limestone

河道上面覆盖着粉砂岩和石灰岩透晶体。

Technology of Water Disaster Controlling and Rescue When Coal Mining over Ordovician and Cambrian Limestone Water in He'nan Coal Mine Zone

河南煤矿区奥灰寒灰水上采煤水害控制救援技术

Obsidian is a naturally occurring glass. Everyday glass (soda-lime or soda-lime-silica)is made of silica (silicon dioxide), soda (sodium carbonate), and limestone (calcium carbonate), with magnesia (magnesium oxide)for sheet glass or alumina (aluminum oxide)for bottle glass.

黑曜岩是一种自然生成的玻璃。普通玻璃(钠钙玻璃、钠钙硅玻璃)是以硅(二氧化硅)、苏打(碳酸钠)和石灰岩(碳酸钙)为原料,加入镁(氧化镁)可制成平板玻璃;或加入铝(氧化铝)可制造瓶玻璃。

Limestone for chemical industry--Methods of sampling and preparing

化工用石灰石采样与样品制备方法

Limestone for chemical industry--Determination of size

化工用石灰石粒度的测定

Limestone for chemical industry--Determination of silicon dioxide content--Molybdenum blue spectrophotometric method

化工用石灰石中二氧化硅含量的测定钼蓝分光光度法

Limestone for chemical industry--Determination of sulfur content--Gravimetric and combustion-iodate titrimetric methods

化工用石灰石中硫含量的测定硫酸钡重量法和燃烧-碘酸钾滴定法

White Limestone

白灰石

slaty limestone

板状石灰石

index limestone

标准石灰岩

coated limestone

包粒灰岩

Asmari limestone

阿斯马里灰岩

limestone powder

石灰石粉

banded limestone

簿层石灰石

Orizaba limestone

奥里扎巴灰岩

Onondaga limestone

奥嫩达加灰岩

dolomite limestone

白云石化石灰石

dolomite limestone

白云石质灰岩

dolomite limestone

白云石质石灰岩

dolomite limestone

白云石质石灰石

Aymestry limestone

艾米斯特利石灰岩

magnesian limestone

白云石

dolomitic limestone

白云灰岩

dolomitic limestone

白云石质灰岩

dolomitic limestone

白云石碳岩

dolomitic limestone

白云石灰岩

coquinoid limestone

贝壳灰岩