- 1. pencil of rays: 光锥
... pencil 光维 pencil of rays 光锥 pencil test 试电笔 ...
dict.youdao.com - 2. pencil of rays: 射线束
... pencil of planes 平面束 pencil of rays 射线束 pendulum 摆 ...
dict.youdao.com - 3. divergent pencil of rays: 发散光束
dict.youdao.com - 4. homocentric pencil of rays: 共心光束
dict.youdao.com - 5. homocentric pencil of rays: 同心光束
dict.youdao.com - 6. homocentric pencil of rays: 共心生锥
dict.youdao.com - 7. parallel pencil of rays: 平行光束
dict.youdao.com - 8. convergent pencil of rays: 会聚光束
dict.youdao.com - 9. convergent pencil of rays: 聚光孔径角
dict.youdao.com - 10. tangential pencil of rays: 切向光束
dict.youdao.com