白垩

Xihu depression is a cretaceous-tertiary basin undergoing multi-episodic tectonism.

西湖凹陷是经历多期构造作用的白垩 - 第三纪盆地.

Incorporating organic material into chalky soils will reduce the alkalinity.

在白垩质土壤中添加有机物可降低其碱性。

Soil in the Champagne region is either chalky or a clay-chalk mixture.

香槟区的土壤为白垩土或陶土和白垩土混合两种.

Here at the base of the chalk formation he neared the brood that oozed from it.

就在那个白垩质山岗的山根下面,他走近了那条由山根下涌出来的小河流.

NEW EARLY CRETACEOUS LALACID FROM JINGXI BASIN OF BEIJING, CHINA ( HOMOPTERA: FULGOROIDEA )

北京京西盆地早白垩世同翅目化石一新属 ( 同翅目: 蜡蝉总科)(英文 )

Such are common in the chalk areas of South of England.

在英国南部白垩地区,这种情况是常见的.

At this point, the chald cliffs shelve down to the beach.

在这里, 白垩质的峭壁渐渐向海滩倾斜.

Shallow burial seems to preserve chalky textured porosity.

浅埋藏似能保留具白垩状结构的孔隙.

The chalky soil around Saumur produces the famous Anjou wines.

索米尔周围的白垩质土壤出产著名的安茹葡萄酒。

Eurasian thistle growing in sand dunes and dry chalky soils.

在沙丘或干旱白垩土壤中生长的欧亚蓟.

the chalk cliffs of southern England

英格兰南部的白垩质峭壁

An aquifer is a water-bearing rock stratum such as sandstone and chalk.

地下蓄水层是一些有水的岩石层,如沙岩和白垩岩.

The facies types of the Lower Cretaceous are mainly delta, lake and turbidity.

下白垩统的扎赉诺尔群的沉积相的主要类型为三角洲相, 湖相和浊流相.

Furthermore, the undrained mechanical behavior of the porous chalk has been studied.

进一步, 我们研究了白垩岩在不排水条件下三轴压缩的塑性力学特性.

Upper Cretaceous : Including the Sifangtai Formation — Minshui Formation, corresponding to the Cenonian — Maestrichtian.

四方台组—明水组为白垩系上统, 相当于赛诺—梅斯特利克蒂阶(Senonian—Maestrichtian).