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汉语拼音：shí huī yán

一种常见岩石。属沉积岩类。主要由生物遗体中的钙质成分和海水中的碳酸钙沉积而成。呈灰、灰白、灰黑等色。是制水泥和烧石灰的重要原料，在冶金工业中用作熔剂，也是重要建筑材料和化工原料。

• Limestone is often used in building construction.

  石灰岩常用于建筑.

• The limestone is sufficiently fissured for tree roots to have breached the roof of the cave.

  石灰岩上有许多缝隙，故而树根能从岩洞顶部长出来。

• The local limestone is very porous.

  当地石灰岩渗透性很强。

• Calcitic limestone is mainly CaCo 3 with relatively small amounts of impurities.

  方解石灰岩,主要是由CaCo3和少量的杂质所形成.

• The isotopic signatures of most ancient limestones indicated the same process.

  大多数古代石灰岩的同位素特征说明了同样的过程.

• 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.

• 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.

• There are four principal types of limestones.

  石灰岩有四种主要类型.

• 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.

• 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.

• Soil: 50 % of gravette of glacial origin with red clays.

  土质: 50%的源自于冰川时期的格维特石灰岩和红黏土,易于葡萄种植.

• Yes, you read ed right: a rock concert in a limestone quarry.

  是的, 没错,一场在石灰岩矿场举行的摇滚音乐会.

• Scope: Cement with limestone mining processing Cementlimestone mining processing.

  经营范围: 水泥用石灰岩开采加工.

• Mineral resources are mainly limestone, refractory clay and so on.

  矿产资源主要有石灰岩, 耐火粘土等.

• The hills are largely carboniferous limestone, which is quarried at several sites.

  从多处遗址的挖掘来看, 这片丘陵大部分属石炭纪石灰岩.