xtl

Synthetic diamond has been studied systematically by techniques such as heat treatment , acid treatment , X-ray diffraction , emission spectrum analysis and XTL - ⅱ microscope in this paper .

通过热处理、酸处理实验，利用X－ray衍射、发射光谱分析、XTL－Ⅱ显微观察对合成金刚石进行了较系统的研究。

Results : XTL preconditioning and IPC could improve the function of the left ventricular , decrease the level of LDH , CK MB and MDA , raise the level of ATP and the activity of SOD significantly .

结果：心痛灵滴丸预适应与缺血预适应均能改善缺血再灌注时左心室功能，减少心肌LDH、CKMB的漏出，提高心肌ATP含量和血清SOD活性，降低MDA含量。

Methods The shape of root canal orifice and its relation to pulp chamber walls and the groove on pulpal floor in 42 maxillary first permanent molor were observed and measured under the XTL 2 photostereograph microscope .

方法采用目镜配置测微尺的XTL2型体视摄影显微镜，观测42个上颌第一磨牙的根管口形态及其与髓室底截面形态和髓室底沟的位置关系。

This paper observes and distinguishes the macro-appearance of the oil tubing fractures of Daqing oil fields , and observes and analyzes the micro-appearance of the fractures deep under XTL - ⅱ type stereomicroscope and S - 2 500 type scanning electron microscope .

观察了油田抽油机井破断油管断口部位的宏观形貌，并且在XTL-Ⅱ型体视显微镜和S-2500型扫描电镜上分析了断口的微观形貌特征。