pseudodeltidium假: false; fake; sham; phoney; a ...三角板: triangle; deltidium; set-squ ...三角板: deltidium; deltoid plate; set square, triangle; set theory; setsquare; triangular plate; trigon三角板 三角尺: set square三角尺;三角板: set square下载手机词典可随时随地查词查翻译