Methods of custody and redelivery of securities, and conditions for early redelivery.

四、证券、返还方式及提前返还条件。

What this shows is that the purpose of the provision of timely redelivery in the charterparty is to enable the ship to be at the full disposal of the owners from the redelivery date.

这说明约中订立的及时还条款目的是自还日起完全处于东的处置下。