The phrase "a certain ship" is correct and usable in written English.
It can be used when referring to a specific ship that is not named or when the identity of the ship is not important to the context.
Example: "The captain of a certain ship was known for his bravery during the storm."
Alternatives: "a particular vessel" or "one specific ship".
Surfers can get answers to surprisingly specific inquiries -- like whether the view from a particular cabin on a certain ship is obstructed.
Over a long period all of the planks composing a certain ship are replaced one by one.
Suppose that over the years, a certain ship was rebuilt, board by board, until every bit of it has been replaced.
In this case, the optimal cargo mix selected for a certain ship in 1-month planning period is considered as already discharged, still loaded, or still booked for this ship in the next planning period, where planning periods may overlap.
Note for example that if a certain ship (an ens per alio) has a property such as the property of weighing so-and-so many pounds at a certain time, it has this property in virtue of the fact that the ens per se that constitutes it at that time actually has that property.
Team captain and 2011 leading tackler Yeremiah Bell was reportedly released on Monday -- a lot to stomach for a fan base who's seen the Fins go down like a certain famous ship over the last few seasons.
Certain ship forms require more data at their extremities.
Certain ship crews may be more experienced in combating piracy, and may more effectively incorporate SCP techniques.
NURBS surfaces modelling the hull of the vessel are constructed and the fairing process adapted to maintain certain ship characteristics is described.
Now when I drive home with a load of hay bales, I'm surrounded by pickups that have a certain mother-ship quality.
Lengthy talk story about radio pratique, a recently inauguated custom of allowing certain ships to pass Quarantine simply on the strength of a radio message from the ship's doctor.
