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1)  β-pyrochlore superconductors
β型烧绿石超导体
2)  pyrochlore-type
烧绿石型
1.
The X-ray diffraction data show that Y_(2-x)RE_xSn_2O_7 with pyrochlore-type structure belongs to cubic, the symmetry being Fd3m.
10)的合成,结构与光谱性质及其变化规律,Y_(2-x)RE_xSn_2O_7为烧绿石型结构,属立方晶系,空间群Fd3m。
3)  pyrochlore structure
烧绿石型结构
4)  ultra-β PNP transistor
PNP型超β晶体管
1.
The design makes the ultra-β PNP transistors work in the low Uce,low Ic1 micro-power state,and takes choice of low-noise measures such as resistive and capacitive components,and then the corresponding circuit is introduced.
对于一款为低阻抗信号源设计用分立元件组成的前置放大器的低噪声设计要点作了较为详细的阐述,设计据级联放大器理论,重点是降低第一个晶体管的噪声系数,为此选择PNP型超β晶体管,并使之工作在低Uce,低Ic1的微功耗状态,并采取低噪声阻容元件等措施。
5)  pyrochlore ['paiərəuklɔ:]
烧绿石
1.
The results show that well-defined La_2Zr_2O_7 powders with a single-phase pyrochlore structure can be obtained at 1100 ℃ for 3 h in air and behave excellent resistance to carbon deposition for the reaction of CO_2 reforming of methane.
结果表明,在空气中1100℃焙烧后,La-Zr-O体系催化剂形成了单相烧绿石结构复合氧化物,对CO2重整CH4制合成气反应表现出了优良的抗积炭能力,而以镍修饰后XRD方法只测量到了单相烧绿石结构La2Zr2O7衍射峰,说明NiO很有可能以无定形的细小晶粒均匀分散在La2Zr2O7表面。
2.
For its well properties showing in research about immobilizing high level radioactive waste,pyrochlore which stably exists in nature has been well studied in recent years.
自然界中稳定存在的烧绿石由于在高放废物固化研究中呈现出的良好特性,近年来得到了大量的研究。
3.
In this article, the physi chemical and kinetic features of supported Pd catalysts and pyrochlore complex oxide were investigated, and the efforts were made to seek a more promising material.
本文通过考察负载型 Pd催化剂和烧绿石型复氧化物催化剂的物化特性与催化反应动力学特征 ,探讨了改良现有催化剂体系反应性能的有效途
6)  pyrochlore-rich synroc
富烧绿石
1.
The leaching behavior of pyrochlore-rich synroc incorporated with 46.
研究了包容46 8%模拟锕系废物的富烧绿石在5种模拟处置介质:纯花岗岩,花岗岩+水泥,花岗岩+Fe3O4,纯膨润土,膨润土+Fe3O4中的浸出行为。
补充资料:黄绿石型结构
分子式:
CAS号:

性质:又称黄绿石型结构或烧绿石型结构。通式为A2B2O7,其中(BO6)八面体通过公共氧顶角沿三维空间连接形成骨架。(BO6)八面体外形略有畸变,A离子位于BO6骨架的间隙中。许多复合氧化物具有这类结构,如焦铌酸镉Cd2Nb2O7,焦钽酸镉Cd2Ta2O7,焦铌酸铅Pb2Nb2O7,焦锆酸铈Ce2Zr2O7等。其中许多氧化物是重要的铁电体,在电子陶瓷领域用途广泛。

说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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