求翻译：本课题采用Ni箔和Cu—Ni箔进行了石墨和TC4合金的真空钎焊工艺研究，观察并且分析了钎焊温度分别为980℃、1000℃在不同的保温时间下的焊缝区域的微观组织和接头区域成分是什么意思？

This topic ni foil and cu-ni foil were graphite and tc4-alloy vacuum brazing process, observation and analysis of the brazing temperature of 980 ° C, the microstructure of the weld region of 1000 ° C under different holding time regional components and connectors

This topic adoption Ni screen and Cu-Ni screen carried on the vacuum 钎焊 craft research of the graphite and the TC4 metal alloyses, observation and the 焊 that analyzed the temperature of 钎焊 to distinguish for the 980 ℃s,1000 ℃sseses under different heat preservation time sews the tiny view organizati

This topic used the Ni foil and the Cu-Ni foil has carried on the graphite and the TC4 alloy vacuum brazing craft research, observed and has analyzed the braze welding temperature respectively be 980℃, 1000℃ under the different soaking time welded joint region microscopic organization and the attach

This topic uses the Ni Cu-Ni and foil foil graphite and TC4 alloy vacuum brazing technology research, observation and analysis of brazing temperature-980 ° c, 1000 ° c under different soaking time of microstructure of weld zone and joint regional component

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