基本解釋[經(jīng)濟(jì)學(xué)]圓分度器詞組短語(yǔ)短語(yǔ)circular r protractor 圓分度器horn semi -circular protractor 牛角半圓量角器brass semi -circular protractor 銅半圓規(guī)bra semi -circular protractor 銅半圓規(guī)circular protractor更多詞組專(zhuān)業(yè)釋義經(jīng)濟(jì)學(xué)圓分度器