什么是Engineering、procurement、construction?

什么是Hibernate Reverse Engineering 什么是back-engineering? 什么是Engineering、procurement、construction? system science and engineering 是什么是个学科，具体学什么有谁明白吗？ 什么是tissue engineering?它是怎样进行的?特指医学及生物学方面. machanical engineering Electrical Engineering ENGINEERING论文 SW engineering forensic engineering drawing engineering change order reverse engineering 中文是? electronic and mechanical engineering mep engineering什么意思 zavkom-engineering什么意思? folk and engineering是什么意思? constructional engineering怎么读? water resources engineering是什么意思