Report copyright - Please send your paper to [email protected]: in which A means angle between 2 target points. D DZ ,E D DZ ý 4K ¢#¹ ý 4K d $ d1 L 2 2 2 L (d d ) 2d d cos 1 2 1 2 A workbench
Please pass captcha verification before submit form
Please pass captcha verification before submit form