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Drillability prediction in some metamorphic rocks using composite penetration rate index(CPRI)–An ap
Assessment of drillability of rocks is vital in the selection,operation,and performance evaluation of cutting tools used......
Drillability prediction in some metamorphic rocks using composite penetration rate index (CPRI)–An a
Assessment of drillability of rocks is vital in the selection, operation, and performance evaluation of cut-ting tools u......
目的:观察4种中国产牙膏对人牙本质的磨损性.方法:将新鲜拔除的人健康恒牙包埋于环氧树脂块中,表面磨平.开一牙本质窗并在刷牙机上......
This study is a part of an overall research project on the effects of microwave (MW) irradiation on rocks for assisted r......
This study is a part of an overall research project on the effects of microwave(MW)irradiation on rocks for assisted roc......
目的:观察4种中国产牙膏对人牙本质的磨损性.方法:将新鲜拔除的人健康恒牙包埋于环氧树脂块中,表面磨平.开一牙本质窗并在刷牙机上......
