垩

It is very clear that their different opinions are mainly caused by their different understanding of the nature, components and international correlation of the Jehol Biota, as well as the criteria of the Jurassic-Cretaceous boundary.

非常明显，产生不同观点的主要原因是我国专家对于热河生物群的性质、特征、组成和国际对比，以及侏罗－白垩系界线的定义和标准各自有着不同的认识和理解。

Old English cealc, related to Dutch kalk and German Kalk, from Latin calx see calx

"麦斯"、和"粉笔"。氢氯甲基安非他命是无色透明的块状晶体，。。。2。白垩，粉笔

It indicates a regional tectonicprocess. The boundary extinction is mainly influenced by sea level changes in southernTibet. The regression occurred from late Campanian of Cretaceous to early Danian ofPaleogene.

西藏南部晚白垩世的海平面从坎潘晚期到丹尼早期是逐渐降低的，生物消亡特点显示出与海平面变化的一致性，可能原因主要受海平面变化的影响。

Three fish species of particular interest to the fishmeal and fish oil are Capelin, Spring Spawning Herring and Blue Whiting.

特别的好处的三个鱼种类对鱼粉和鱼油的是毛鳞鱼，产生鲱鱼和蓝色白垩粉的春天。

To create paintings on the coarse surface of the rocks, the artists first applied grass and clay on the roofs and walls of the cave s and then began painting.

为了在粗糙的岩壁上作画，历代的艺术大师们先在洞壁的四周及顶部抹上草泥，白垩打底，再绘制壁画。

Then the cementation and the relationship between cementation and suction are also studied.

最后对非饱和白垩的胶结特性及胶结作用与吸力的关系进行了研究。

Study the effect of unsaturated characters and cementation on the hydromechanical behaviour.

研究吸力和胶结作用对白垩的力学性态、水理特征的影响。

Except for Aodiju deposit, the other deposits are located in the malmstone stratum of liuju area of the Cetaceous Maton hill group.

除凹地苴矿床外，其余矿床均赋存于上白垩统马头山组六苴段的砂岩地层中。

Where chalkstone was of poor quality, better stones had to be used at the building corners and openings.

白垩块质量很差，质量好的石头都用于建筑的角落和通道。

Chalky rice detection is very important in human's daily life.

垩白米的检测在人们的日常生活中具有重大意义。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了