翻译一句话，快：工业管理工程师的来信表明 他对该项计划是否可行有怀疑 向李先生学习 因为他有工作经验

A letter from the management of industrial engineers show he is in doubt on the feasibility of project
we should learn from Mr LI ,because he has work experience

Incoming letter of industrial management engineer indicates him to if that plan can be carried out having doubting the work experience learning from Mr. Li because of he has