石核
- steinkern
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石器组合包括:石核、石片、石锤、刮削器等。
The stone assemblage includes cores , flakes , choppers , scraper .
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以燧石、玄武岩等原料打制的标本包括石核、石片、工具和碎屑。
The stone artifacts made of chert , basalt and other rock consist of cotes , flakes , tools and debris .
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以后,石器工具的制作开始发展为二次或多次加工的细致的石器,再以后石器工具又在制备的石核上制造。
After that , with the development of the manufacturing technique , the exquisite stone tools by twice or several times striking were made , and later , the human being began to make the stoneware on the prepared stone cores .
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坡缕缟石对核废料的吸附特性及应用前景
Absorptive Property of Palygorskite and Its Application to the Disposal of Nuclear Wastes
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进而分析了脉冲电场作用下基体中石墨晶核的数量增加,有效地缩短了珠光体分解时碳原子的扩散距离,从而加速了第二阶段石墨化过程中珠光体的转变。
The result indicated that transformation of perlite was accelerated and the quantities of ferrolites was increased under the function of impulse electric field at second stage graphitization .
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对橄榄石相变形核率的估算
Evaluation of the nucleation rate of olivine
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两次调查共获得石制品57件,包括石核、石片、使用石片、刮削器、琢背刀和尖状器等。
During the two surveys , 57 stone artifacts were unearthed , including cores , flakes , scrapers , knives , etc.
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石制品中有典型的楔形、船底形石核;工具有长身圆头刮削器、雕刻器和锛形器等。
Among them boat or cuneiformed cores and stone tools such as long scrapers with round edges , engravers and adze-shaped blades are found largely .
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这些绿帘石呈自形晶,普遍发育熔蚀结构,部分具褐帘石核。
Most of these epidotes are idiomorphic , and they are featured frequently with melting corrosion structure and occasionally with allanite-rich cores .
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伊利石单元粒子的形成过程有三个阶段:蒙脱石伊利石化过程中2nm厚的伊利石粒子的成核作用阶段、成核作用与生长作用阶段和表面控制生长阶段。
There are three stages in the formation process of illite fundamental particle : ① the nucleation stage of 2 nm thick illite particle at the incipient process of montmorillonite illitization ; ② the simultaneous nucleation and growth stage and ③ the surface controlled growth stage .
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XRD及DSC测试结果表明,硅灰石的加入并没有改变PP的晶型,但复合材料的微晶尺寸变小,且针状硅灰石的异相成核作用较超细硅灰石明显。
The results of XRD and DSC measurements show that , the addition of wollastonite does not change the crystal type of PP , but crystallite size of the composite becomes smaller . Moreover , the heterogeneous nucleation function of needle-like wollastonite is more obvious than that of ultra-fine wollastonite .
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引导石是在冷战最紧张的时期而修建的,对于修建的目的,一个主流的观点就是,引导石将在核灾难后引导如何重建这个世界。
Since the monument was built during the height of the Cold War , one popular theory about the group 's intentions is that the Guidestones were to serve as a primer for how to rebuild society in the aftermath of a nuclear holocaust .