equal angle steel with sharp edge
等响曲线
equal loudness contour【声】;isacoustic curve【声】;
暂无补充释义。
相关词条
other things being equal
equal
accordance with the principle of consultation on an equal footing
equal
place equal emphasis on material and ethical progress
equal-angle transversal elliptic cylindrical projection【测】
equal pay for equal work irrespective of sex