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• 2018-12-08 04:51發(fā)布了問答

  秦劍的秦劍發(fā)展

  　

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• 2017-10-19 15:26發(fā)布了問答

  分析電子衍射與x射線衍射有何異同

  　

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• 2017-01-01 01:56發(fā)布了問答

  能譜儀能測定的Z小原子序數(shù)是多少

  　

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• 2013-07-25 08:35發(fā)布了問答

  手持式X射線熒光儀生產(chǎn)廠家有哪些？（國產(chǎn)、海外廠家分別）

  　

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• 2011-12-16 01:21發(fā)布了問答

  如何區(qū)分翡翠的好壞？市面上5千的玉鐲算什么檔次？

  　

  384人看過

• 2010-03-07 19:15發(fā)布了問答

  化學(xué)專業(yè)英語翻譯 懂的翻譯下 謝謝

  The X-ray diffraction (XRD) pattern was obtained on a Thermo ARL XTRA X-ray diffractometer with Cu K radiation ì 1.54178 ?). In situ XRD characterization was performed n a high-temperature attachment of the X-ray diffractometer. ... The X-ray diffraction (XRD) pattern was obtained on a Thermo ARL XTRA X-ray diffractometer with Cu K radiation ì 1.54178 ?). In situ XRD characterization was performed n a high-temperature attachment of the X-ray diffractometer. Transmission electron microscopy (TEM) observation was performed with a JEOL JEM 2010 high-resolution transmission electron microscope (HRTEM) operated at 200 kV. The UV vis diffuse reflectance spectrum (DRS) was obtained from a Perkin-Elmer Lambda 900 UV vis spectroscopy machine. The precursor was characterized by Fourier transform infrared (FT- R) spectroscopy on a Perkin-Elmer Spectrum One FT-IR machine by using the KBr pellets method. 展開

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