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结晶石英
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     Recrystallized gypsum and a bit of quartz are main mineral composition.
     主要矿物为二次结晶石膏和少量石英
短句来源
     There arealso some potassium sulfate,corundum andlimonitein the dust.
     结晶物质主要是硫酸钾、棕刚玉、褐铁矿、K2S4 O6 和石英
短句来源
     Quartz Family Minerals(A Handbook for the Mineral Collector)
     石英类矿物
短句来源
     Quartz Crystal Oscillators
     石英晶体振荡器
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     A Crystal-Amorphous Interphase in Crystalline Polymers
     结晶聚合物的中间层
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  crystalline quartz
Stability of Aqueous Crystalline Quartz Dispersions in the Acidic pH Region: The Role of the Structural Component of the Particl
      
It is shown that, as the temperature increases, the motion of a helium atom in crystalline quartz changes over from vibratory motion about the equilibrium position at 300 K to free displacements throughout the bulk of the crystal at 750 K.
      
Aggregate stability of the sol prepared from crystalline quartz in aqueous solutions of potassium chloride
      
The aggregate stability of the sol prepared from crystalline quartz is investigated by the direct method of flow ultramicroscopy.
      
We present a structural study of single crystalline quartz-like α-GeO2 compressed to pressures up to 12 GPa and subsequently quenched to ambient conditions.
      
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本研究的目的是寻找制造重要铸件的陶瓷型芯的成分和工艺。为保证陶瓷壳型最佳的使用性能,可使用综合粘结剂—耐热有机硅清漆及细弥散碳化硅。这时在焙烧过程中在电熔刚玉颗粒上形成高致密性的细纤维膜状粘结剂。使用结晶石英粉和碳酸钙粉作为粘结剂时,电熔刚玉颗粒被与其烧结的和自身间烧结的石英颗粒所粘结,石英颗粒又形成特殊的骨架而保证了材料强度。

This paper expounds the radiation damage methed──using electron paramagnetic resonance (EPR)technique to measure the paramagnetic center concentration of crystalline quartz, as well as its application to the research of sandstone-hosted uranium deposits of interlayer oxidation type. Oxidized rocks in interlayer oxidation zone are characterized by higher paramagnetic center concentration and lower uranium content,i. e. larger radiation damage and higher initial uranium content,while rocks in oxidation-reduction...

This paper expounds the radiation damage methed──using electron paramagnetic resonance (EPR)technique to measure the paramagnetic center concentration of crystalline quartz, as well as its application to the research of sandstone-hosted uranium deposits of interlayer oxidation type. Oxidized rocks in interlayer oxidation zone are characterized by higher paramagnetic center concentration and lower uranium content,i. e. larger radiation damage and higher initial uranium content,while rocks in oxidation-reduction zone have lower paramagnetic center concentration in quartz and higher uranium content,indicating that uranium might come from oxidized rocks. The above-mentioned technique may be applied in discussing the genesis and uranium source of deposits,as well as in prospecting and prognosis.

本文论述了电子顺磁共振法测量岩石中结晶石英的顺磁中心浓度──辐射损伤法在层间氧化带砂岩型铀矿床中的应用;在层间氧化带中,氧化带岩石中的石英顺磁中心浓度高,铀含量低,即辐射损伤大,古轴量高,而氧化-还原过渡带中的石英顺磁中心浓度低,铀含量高,表明铀源来自氧化带岩石。由此可以探讨矿床成因和成矿物质来源,并用于找矿和成矿预测工作。

The Fuping Group in Pingshan County, Hebei Province, is a suite of high-grade amphibolite-facies rocks. From its micro-features, the rocks underwent anatexis in some areas. The effect of the anatexis is most promi- nent in sillimanite-K- feldspar leucogranulitite (leptite) of the Xiaojue area. The electron microscopic observation shows that the sillmanite-K- feldspar leucogranulitite studied has been modified in the process of anatexis. There appear many distinct micro-area mineralogical characteristics which...

The Fuping Group in Pingshan County, Hebei Province, is a suite of high-grade amphibolite-facies rocks. From its micro-features, the rocks underwent anatexis in some areas. The effect of the anatexis is most promi- nent in sillimanite-K- feldspar leucogranulitite (leptite) of the Xiaojue area. The electron microscopic observation shows that the sillmanite-K- feldspar leucogranulitite studied has been modified in the process of anatexis. There appear many distinct micro-area mineralogical characteristics which are mainly different degrees of corrosion of pre-existing minerals such as K-feldspar (Kf1), perthite, quartz (Q1), albite (Ab1), biotite (Bi1) and magnetite (Mt1) , remobilization and reconstitution of the main component elements and formation of recrystal-lized minerals, e, g. sillimanite, quartz, mica, feldspar and rutile along the cleavages and fissures of the minerals and in their interstices. There are two possible mechanisms of element remobilization in the process of anatexis: (1) selective removal from the lattices of the pre-existing minerals, and (2) melting of pre-existing minerals. Fe and Ti removed from biotite formed the recrystallized magnetite (Mt2) and rutile, while Si and Al removed from the biotite and feldspar formed sillimanite (Sill) and quartz (Q2).

河北省平山县阜平群是一套高角门岩相岩石。根据宏观现象,某些地段曾经历过深熔作用过程。深熔效应以小觉地区的夕线石钾长浅粒岩最为典型。通过电子显微镜观测确认,所研究的夕线石钾长浅粒岩经受了深熔作用的改造,具有丰富而显著的微区矿物学标志。主要表现为前存矿物,如钾长石、条纹长石、石英、钠长石、黑云母和磁铁矿等,不同程度地被熔蚀,主要组成元素发生迁移和重组,沿矿物的解理、裂隙及粒间形成夕线石、石英、云母、长石、金红石等再结晶相。在深熔过程中,元素的迁移有两种可能形式:①选择性地从前存矿物晶格中移出;②通过前存矿物的熔融。Fe、Ti等元素从黑云母中移出,形成再结晶磁铁矿和金红石;Si、Al等元素则从黑云母和长石中移出,形成夕线石和再结晶石英

 
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