hanging compass 中文意思是什麼
hanging compass
解釋
吊羅經-
Abstract : this paper sets forth the application practices of using hanging compass at dongxiang copper mine and some idesa on existing problems with it
文摘:本文簡介了懸掛羅盤儀在東鄉銅礦的應用實踐,並對存在問題提出了自己的看法。
分享友人