Coordinate system number. KCN may be 0,1,2 or any previously defined local coordinate system number (defaults to the active system).是什么意思_Coordinate system number. KCN may be 0,1,2 or any previously defined local coordinate system number (defaults to the active system).在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句