杨立强

Improved Z-source boosting DC (direct current)-DC converter

张波, 丘东元, 张桂东, 2013 .

Remote control hydraulic grab bucket

张鹏, 王景起, 罗莉萍, 2012 .

SAGD (steam assisted gravity drainage) wet steam injection station system, boiler water recycling method thereof

杨建平, 孙建平, 丁亚军, 2011 .