Ziyun, 左. Z. X. S. 带有反向螺纹的同轴变速单螺杆三维流场分析 "Three dimensional flow field analysis of coaxial variable speed single screw with reverse thread". 中粮工科（西安）国际工程有限公司.
Chicago Style (17th ed.) CitationZiyun, 左晓甜，郭树国，金子云 ZUO Xiaotian，GUO Shuguo，JIN. 带有反向螺纹的同轴变速单螺杆三维流场分析 "Three Dimensional Flow Field Analysis of Coaxial Variable Speed Single Screw with Reverse Thread". 中粮工科（西安）国际工程有限公司.
MLA (9th ed.) CitationZiyun, 左晓甜，郭树国，金子云 ZUO Xiaotian，GUO Shuguo，JIN. 带有反向螺纹的同轴变速单螺杆三维流场分析 "Three Dimensional Flow Field Analysis of Coaxial Variable Speed Single Screw with Reverse Thread". 中粮工科（西安）国际工程有限公司.
Warning: These citations may not always be 100% accurate.