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对树脂补增密前、后的C/C复合材料(简称材料A和材料B)在不同制动压力下的摩擦磨损性能进行了研究。通过光学显微镜和扫描电镜对C/C复......
In the late 18th century and the beginning of 19th century,there appeared an important literary trend named Gothic as a ......