机译:非完整系统的广义伯克霍夫表示及其离散变分算法
College of Physics, Liaoning University, Shenyang 110036, China;
College of Physics, Liaoning University, Shenyang 110036, China;
College of Physics and Technology, Shenyang Normal University, Shenyang 110034, China;
Eastern Liaoning University, Dandong 118001, China;