thrihedral tool-maker's straight edge

基本解释三棱直尺

网络释义

1)thrihedral tool-maker's straight edge,三棱直尺2)triangle rule,三棱平尺3)three-square rule,三棱尺4)corner cube prism,隅角棱刽,三面直角棱镜5)ARTPN,似直三棱柱网6)drawing square,直角三角尺

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