1)chronic electrode,延久电极2)time yield limit,持久延伸极限3)permanent electric dipole moment,永久电偶极矩4)epitaxial collector,外延集电极5)Behind? For how long?,延迟？延多久？6)permanent extension,永久延伸
用法和例句
The permanent electric dipole moment of a Cs atom is edCs>2.
本实验得出铯原子永久电偶极矩edCs>2。
It is expounded that a Cs atom may have large permanent electric dipole moment.