"大中型企业"英语怎么翻译

(the) large and medium-sized enterprises

For example:extricate (free) the large and medium-sized state-owned enterprises from predicament(使大中型国有企业摆脱困境)

invigorate large and medium-sized state-owned enterprises (搞活国营大中型企业)

large and medium-sized enterprises

big-and-medium-sized enterprise