periodic field focusing
英 [ˌpɪəriˈɒdɪk fiːld ˈfəʊkəsɪŋ]
美 [ˌpɪriˈɑːdɪk fiːld ˈfoʊkəsɪŋ]
网络 周期场聚焦
双语例句
- On the basis of the research of the transformation groups in beam optics, some problems such as the periodic field focusing, beam batching, chromatic dispersion and aberration are discussed.
在研究束流光学中的各种变换群的基础上讨论了周期场聚焦、束的匹配、色散和象差等问题。