白垩的

The garnets in Cretaceous sandstones come from blueschist that located in the southwest Tianshan and low-grade metamorphic rocks by lager proportionally. The garnets in Tertiary sandstones enrich almandine, which come from high-grade metamorphic rocks.

白垩系砂岩中的石榴石来自西南大山蓝片岩和低级变质岩的比例较大，而第三系砂岩中的石榴石中富铁铝榴石组分，多来自高级变质岩。

XZM Ultrafine mill is a machine for producing fineness and ultra-powder. It is mainly used for grinding the materials whose hardness is middle and low, moisture below 6%, and Moths hardness should be blow 9 grade and non-explosion and non-flammability, such as: calcite, chalk, limestone, dolomite, kaolin, bentonite, steatite, mica, magnesite, illite, pyrophillite, vermiculite, meerschaum, attapulgite, diatomite, barite, gypsum, alunite, graphite, fluorite, phosphate ore, potassium ore pumice, etc.

XZM 中速微粉磨是一种细粉及超细粉的加工设备，它主要适用于中、低硬度物料的研磨粉碎，如高岭土、石灰石、方解石、滑石、大理石、重晶石、石膏、白垩、白云石、膨润土、云母、菱镁矿、伊利石、叶腊石、蛭石、海泡石、凹凸棒石、累托石、硅藻土、石墨、明矾石、萤石、磷矿石、钾矿石、浮石等湿度小于6％，莫氏硬度在9级以下非易燃易爆的非金属物料。

Data obtained by thin-sections analysis, cathodoluminescence emission analysis and SEM/EDX show that carbonate cements seem to be the uppermost cements composed of ferroan sparry calcite and ankerite and are distributed mostly in the depth interval of 100 m below the unconformity, with their contents increasing with the depth.

通过薄片观察、阴极发光、扫描电镜/能谱分析，认为碳酸盐胶结物是研究区砂岩最主要的胶结物成分，其主要类型为方解石和铁白云石，垂向上含量随深度增加而增加，多集中分布在白垩系和侏罗系之间的不整合面之下约100 m的范围之内。

A small cube of chalk used in rubbing the tip of a billiard or pool cue to increase its friction with the cue ball.

擦抹于球杆顶端的粉块用来擦弹子球棒梢或落袋台球棒梢以增加其与球的摩擦的一小方块白垩

Games A small cube of chalk used in rubbing the tip of a billiard or pool cue to increase its friction with the cue ball.

擦抹于球杆顶端的粉块：用来擦弹子球棒梢或落袋台球棒梢以增加其与球的摩擦的一小方块白垩

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。

It is revealed from the quantitative measurement of the extent of chalky portion that the 3D image processing system is also an effective way for the quantitative morphological study.

利用该系统对垩白度的定量化测定，为食品的定量形态学研究开辟了一条新的研究途径。

The Bayan Nur Geopark holds the biggest and most important late Cretaceous dinosaur fossils in China or even in the East Asia, abundant in fossils, such as ceratopsia, ankylosauria, coelurosauria, furtherover chelonian, crocodilian, saurischian and mammalian, and egg fossils of vertebrates.

内蒙古巴彦淖尔地质公园恐龙园区是中国乃至东亚地区最大、最重要的晚白垩世恐龙化石产区，蕴藏着丰富的古生物化石，主要有角龙类、甲龙类、兽脚类化石，还有龟鳖类、鳄类、蜥蜴类、哺乳类以及多种不同的脊椎动物及其蛋化石。

Wiltshire includes the Avebury Stone Circle, Salisbury Plain, and Stonehenge, as well as nine white chalk horses carved into hillsides.

威尔特郡的名景有埃夫伯里石圈、斯伯利平原和巨石阵，还有九匹刻在白垩山坡上的白马。

Results Malang Sag has two important times uplifting and three times subsiding, while Tiaohu Sag has three times uplifting and four times subsiding.

结果 马朗凹陷主要经历了2个隆起期和3个沉降期，条湖凹陷为3个隆起期和4个沉降期；早、中二叠世两凹陷的沉降幅度很大，沉积速率最大可达133.46m/Ma；晚白垩世的隆起幅度最大，地层剥蚀厚度可达846m。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。