Warning: file_put_contents(): Only 0 of 6162 bytes written, possibly out of free disk space in /www/wwwroot/ppbbu/4cd.cn/index.php on line 55 circular mil英英字典_circular mil剑桥英语解释_circular mil柯林斯英文解释_沉淀汉英词典
1. N a unit of area of cross section of wire, equal to the area of a circle whose diameter is one thousandth of an inch. 1 circular mil is equal to 0.785 × 10–6 square inch or 0.2 × 10–9 square metre 圓密耳