zhuān jiā zǔ / jīng guò / fǎn fù / lùn zhèng / yán dìng / le / zhè xiàng / gōng chéng / de / zuì zhōng / fāng àn

专家组经过反复论证，研定了这项工程的最终方案。

After repeated demonstrations and discussions, the expert group determined the final plan for the project.