1. "Slide Box" allows new angles and perspectives of shots because of its removable lens. “幻灯片箱子”允许射击新角度和透视由于它可移动的透镜。
2. The traditional teaching quality evaluation system is optimized from angles of evaluation index, evaluation method and evaluation personnel. 从评价指标、评价方法、评价人员等角度对传统教学质量评价体系进行优化。
3. The results show that there are three discontinuous points at the critical angles of phase constants, the critical angle of attenuation constants and 90°. 计算结果表明，入射角在相移常数临界角、衰减常数临界角和90°处，横向偏移曲线存在三个间断点；
