No, the working of these apparatus does not relieve the watch officer of his duty to maintain a proper lookout at all time.

不，这些装置的工作并不能免除值班人员始终保持适当瞭望的职责。

Usually, under the following situations, the turnover can be deferred or even postponed: (1) If the officer on watch has reason to believe that the relieving officer is obviously not able to carry out his duties effectively?

通常，在下列情况下，交接工作可以延期甚至延期： （1）值班人员有理由相信接替人员明显不能有效履行职责？