Naval architects and Marine engineers take on high-level tasks like ship design for the U. S. Navy and Coast Guard as well as commercial, civil and foreign ship design.

The conclusions drew in the paper will provide useful reference when the marine engineers make decision, also build up a strong basis for the research on wear life of the cylinder.

The 11 French killed in the bombing were engineers working at the Karachi seaport for a state-owned French Marine construction company, the French Foreign Ministry said in Paris.