A unit of length equal to one thousandth(10-3) of an inch(0.0254 millimeter), used, for example , to specify the diameter of wire or the thickness of materials sold in sheets.是什么意思_A unit of length equal to one thousandth(10-3) of an inch(0.0254 millimeter), used, for example , to specify the diameter of wire or the thickness of materials sold in sheets.在线翻译_英语_读音_用法_例句