1)coarse grained metal,粗晶金属2)crude metal,粗金属3)base bullion,粗金属锭4)metal geometry grating,金属粗光栅5)base bullion,粗金属锭[冶]6)roughened metal plate,粗糙金属片
用法和例句
According to the special character of the metal geometry grating,this paper introduces a newplan to realize motive position measurement on the base of the phase demodulation division.