当在另外一束与光腔轴线成横向垂直的高强度激光照射下，满足该原子所需的电磁感应透明条件，光会恢复到最大输出通量(图1b所示)。
1a. With an additional control laser of very high intensity applied transverse to the cavity axis, the single-atom EIT condition is achieved and maximum transmission is recovered See Fig.
本研究设计了一种低强度激光腔内照射治疗装置。
An apparatus was designed in this research for intracavity laser irradiation therapy.
结论高位胆管癌外科手术治疗是主要手段，腔内照射及肝动脉化疗栓塞，可预防或延迟局部复发及转移，延长病人生存时间。
Conclusion Surgery is the primary therapeutic method of high bile duct carcinoma, while internal radiation and TAE can prevent or delay the relapse and metastasis and prolong the survival.
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