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Written : retrievable electronic or hard copy .

书面:可恢复的电子文档或硬拷贝.

Retrievable vena cava filters in the interventional treatment of venous thrombi embolism .

可回收式滤器在静脉血栓-栓塞病变介入治疗中的应用。

Records shall remain legible , readily identifiable and retrievable .

记录应保持清楚、易于识别和检索。

The photo most certainly still exists on cellphones , and perhaps on social networking sites , readily retrievable .

几乎可以肯定，这张照片仍然保存在许多手机里，而且也许在社交网站上很容易取回。

He believed the information was retrievable .

他认为这些信息可以被恢复。