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secondary deposit
相关语句
  次生矿床
     The high quality Jadeite Jade deposit is occurred primarily in Myitkyina area the north of Burma. According to the geological characteristic of the jadeite deposit, The jadeite deposit is divided into the primary deposit and secondary deposit, Jadeite that occurred in secondary deposit have better quality.
     玉石级翡翠主要产于缅甸北部密支那地区的乌龙河流域,根据翡翠矿床的地质特征,缅甸翡翠矿床可分为原生矿床和次生矿床次生矿床翡翠品质较好。
短句来源
  “secondary deposit”译为未确定词的双语例句
     Liaoning Xiuyan Nephrite Placer Deposit(XNPD)is a secondary deposit of primary nephrite ore.
     辽宁岫岩软玉砂矿 (又称河磨玉矿 )是原生软玉矿的次生砂矿床。
短句来源
  相似匹配句对
     The Effect of Fillers on the Deposit of Secondary Stickies
     填料对二次胶粘物沉积的影响
短句来源
     Uranium minerals at the deposit mainly are secondary uranium minerals.
     工业铀矿物主要为铀的次生矿物,其中以β硅钙铀矿为主。
短句来源
     deltaic deposit.
     三角洲沉积。
短句来源
     The secondary disaster
     二次灾难
短句来源
     On the secondary spectrum
     关于二级光谱问题的探讨
短句来源
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  secondary deposit
White arrow indicates a coralliform secondary deposit; black arrow indicates a scleractinian coral fossil.
      
In one patient, with a secondary deposit of thyroid carcinoma, the graft could not be inserted because of profound osteoporosis.
      
It is not known exactly whether the Saxon amber is just a secondary deposit of Baltic amber or of independent origin.
      


Based on the carbon-14 dates, this article illustrates the dates of ten late paleolithic sites in China. It points out that different age indicated by the carbon-14 dates of the upper and lower layers of cave deposits has provided definite evidence for the periodization of the late paleolithic culture. It is felt that the abnormal phenomena in the carbon-14 dates for open sites mean a confusion which occurred in secondary deposits caused by deluvium or alluvium. Therefore, the dates available require...

Based on the carbon-14 dates, this article illustrates the dates of ten late paleolithic sites in China. It points out that different age indicated by the carbon-14 dates of the upper and lower layers of cave deposits has provided definite evidence for the periodization of the late paleolithic culture. It is felt that the abnormal phenomena in the carbon-14 dates for open sites mean a confusion which occurred in secondary deposits caused by deluvium or alluvium. Therefore, the dates available require a further analysis. It is concluded that carbon-14 dating is a necessary means in the study of the late paleolithic culture, but attention should be paid to the position of the layer and the state of preservation of the samples taken. It is also suggested that scattered charcoalcinders should be avoided as samples and individual carbon-14 dates should be tackled carefully when cited. Finally, the dating accuracy can be attainable only when the carbon-14 dates are analysed in the light of cultural character.

根据已公布的47个碳-14数据,进而分析10处中国晚期遗址的年代和问题,并提出不同的看法。文中强调:露天遗址中碳-14数据的异常现象,往往与各种原因形成的再次堆积有关。因此必须注意样品的采集和避免引用孤零的碳-14数据,同时还要结合地层和文化性质的分析,才可能保证断代的准确性。

Anpeng Trona deposits is situated in Biyang depression in Henan province. Its distribution is controled by dolomite in Eocene lake facies. The mineral assemblege is simple being rich in carbonatites and lack of sulphate and chloride. There are three types of occurreces:solid state which is primary deposit, liquid salt brine and filling in some pores of the dolomites which are secondary deposit. In this paper a prospect of further exploration is discussed also.

本文在研究了泌阳凹陷构造发展阶段的演化及有利含盐地层沉积环境的基础上,认为安棚碱矿的特点是成盐期晚,成盐期数少,盐类矿物组合单一,富碳酸盐类而贫硫酸盐和氯化物,这是单纯碱性环境中的特殊产物;并论述了碱矿的形成条件和勘探前景。

Establishing the timescale of long-term variation of the geomagnetic field has not only a practical significance for archaeology and geology but also a significant meaning for making an approach to physical state of the inner part of the Earth (within the mantle-core boundary). The authors have carried our for the first time a research on long-term variation of the geomagnetic field in Guangxi China by using paleomagnetism of speleothems (secondary deposits in limestone caves), which is a new method used...

Establishing the timescale of long-term variation of the geomagnetic field has not only a practical significance for archaeology and geology but also a significant meaning for making an approach to physical state of the inner part of the Earth (within the mantle-core boundary). The authors have carried our for the first time a research on long-term variation of the geomagnetic field in Guangxi China by using paleomagnetism of speleothems (secondary deposits in limestone caves), which is a new method used in the world in recent years. The results showed that the long-term variation of the geomagnetic field in Chian in a composite activity including different cycles of variation big and small. The results are comparable to data from other countries, nevertheless there exist some differences. The specific points indicate the westward drift of a non-dipole field.

建立地磁场长期变化的时间表,不仅对于考古学、地质学具有直接的实用价值,对于地球内部物理状态的研究,也具有极其重要的意义。本文作者采取国际上近年新兴起的新方法—洞穴次生化学沉积物的古地磁法,首次进行了中国广西地区的地磁场长期变化的研究。研究表明,中国的地磁场长期变化是一包罗大小不同周期变化的复合运动。该结果与国外资料相比,既有共同点,又有区别处。其特殊之处反映了地磁场的“西向漂移”现象。

 
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