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Terms for subject Earth sciences containing 半圆形 | all forms | in specified order only
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半圆形底唇细粒金刚石钻头single-round nose
金刚石钻头半圆形底唇medium round nose
唇部半圆形金刚石钻头medium round nose
端部半磨圆形底唇细粒金刚石钻头semi-round nose