gōng / chéng / shī / zhèng / zài / jiǎn / chá / chuán / shàng / de / jiǎn / yáo / qí / shì / fǒu / zhèng / cháng / gōng / zuò

工程师正在检查船上的减摇鳍是否正常工作。

The engineers are checking whether the ship's fin stabilizers are working properly.