7-day training for marine simulator of coastal large pipe and below; Training of driving simulator for coastal first mate and below for 6 days; The training of G-certificate simulator for coastal first mate and below is 2 days.

Marine engine simulator training is engine room resource management and engine room simulator. Simulator training itself is a random test, with 4 classes in Class A and 3 classes in Marine Engineering, which is assessed by the Maritime Safety Administration. Rules for examination, evaluation and certification of seafarers' certificates of competency and corresponding training and evaluation norms for navigation simulators. At the same time, the engine simulator can also be used for the training of engineers to supplement electrical knowledge and some training requirements of other general related engine evaluation projects.

The concept of crew:

Crew refers to all personnel on board, including the captain. Captain, driver, chief engineer, engineer, electrical engineer, telegraph operator (this post was basically abolished after 2000, and the driver acted as the agent) and political commissar (basically all state-owned enterprises in China) must be held by people with corresponding certificates of competency. China crew members engaged in international navigation must hold seafarers' certificates and relevant certificates issued by the harbour superintendency agencies of People's Republic of China (PRC) and China.

Refer to the above? Baidu encyclopedia-crew