这幅图片获得于2004年6月23日，当海冰在夏季融化期消融或退去之前。

The image was acquired on June 23, 2004, before sea ice had melted or retreated in the summer thaw.

youdao

组，慢径消融后其快径前传功能不应期和有效不应期缩短不明显，随访期间有5例复发心动过速。

C group, function refractory period and effective refractory period not obviously shortened after slow pathway ablation, tachycardia for 5 patients while following up.

youdao

前言：目的：探讨射频消融术(R FCA)患者围手术期的心理特点及原因，为适当的心理干预提供理论依据。

Objective: to provide theoretic basis for taking proper perioperative psychological intervention to patients with RFCA through the study on psychological activities of patients.

youdao