In the passage, one character is inquiring about a specific nautical item, a double sister-block, coaked, and expresses a desire to use it alongside a hold-fast to achieve a task of raising the Temple. This reflects the practical and technical nature of maritime work, emphasizing the importance of understanding particular equipment in sailing or shipbuilding.
Another character responds with uncertainty, highlighting his lack of knowledge not only in French but also in English regarding the item mentioned. This exchange captures a moment of humor and confusion, showcasing the camaraderie and challenges faced by those involved in the seafaring life as described in Patrick O'Brian's "The Surgeon's Mate."