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Machinable bioactive glass-ceramics containing mica and fluorapatite were prepared by high-temperature melting. The glass-ceramics were analyzed by means of X-ray diffractometry, scanning electron microscopy with energy dispersive spectrometer and Fourier transform infrared reflection spectrometry. The bending strength, hardness and fracture toughness of the materials were measured.

摘 要：采用高温熔铸法制备可加工生物活性云母/氟磷灰石玻璃陶瓷；用X射线衍射、扫描电镜和傅里叶变换红外光谱分析等手段对材料的相组成和微观形貌进行研究，测定材料的抗弯强度、硬度和断裂韧性等力学性能；采用体外模拟体液浸泡法测试材料的生物活性。

Machinable bioactive glass-ceramics containing mica and fluorapatite were prepared byhigh-temperature melting. The glass-ceramics were analyzed by means of X-ray diffractometry, scanning electron microscopy with energy dispersive spectrometer and Fourier transform infrared reflection spectrometry. The bending strength, hardness and fracture toughness of the materials were measured.

摘 要：采用高温熔铸法制备可加工生物活性云母/氟磷灰石玻璃陶瓷；用X射线衍射、扫描电镜和傅里叶变换红外光谱分析等手段对材料的相组成和微观形貌进行研究，测定材料的抗弯强度、硬度和断裂韧性等力学性能；采用体外模拟体液浸泡法测试材料的生物活性。

The new method for thermal neutron flux density measurement by γ spectrometer is described.

介绍了利用γ谱仪测量绝对中子注量率的方法。

The analysis of Fourier transform infrared spectrometer was also investigated.

我们也探讨了傅立叶转换红外光仪的分析结果。

They used liquid and gas chromatography to fractionate the sample into its molecular constituents; an electron beam then fragmented the separated molecules in a mass spectrometer to produce a spectrum indicating the basic chemical components.

他们运用液相与气相层析法，将样本的组成分子分开，然后导入质谱分析仪，以电子束使已分离的分子断裂，进而产生出可识别基本化学组成的图谱。

The two Fraunhofer lines at 688nm and 760nm are obvious in the radiance spectra by ASD FieldSpec Pro NIR spectrometer,which largely overlap the chlorophyll fluorescence emission spectrum of leaves.

第三，研究并分析了夫琅和费暗线方法计算的688nm和760nm波段的荧光特性，结果表明该方法计算的荧光是可靠的，它与光合有效辐射关系密切，复相关系数达到了0.9；冬小麦冠层荧光光谱在760nm和688nm波段的荧光大小基本相等，而地锦冠层荧光光谱在688nm波段的荧光强度是760nm的3倍左右，表明荧光光谱能够更加敏感地反映植被物种或生理生化状况的差别。

In general, four channels gamma ray spectrometer is used in field gamma spectrometric surveying.

在野外地面测量30～3000keV的伽玛射线全谱，是进行野外伽玛射线能谱测量的基础。

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Design of CCD Grating Spectrometer with Refrigeration and Application in Fourier domain OCT .

带制冷的CCD 光栅光谱仪设计及其在频域OCT 中的应用。

Germany APE provides WaveScan wavelength meter is a compact, easy to use, economical scanning grating spectrometer.

德国 APE公司提供WaveScan 波长计是一款结构紧凑、使用方便、经济实用的扫描光栅光谱仪。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。