large and middle-scale的用法和樣例：
例句
- Most of large and middle scale open-pit mines in China have reached deep mining.
摘要我國的大多數大中型露天礦山已經(jīng)或即將進(jìn)入深部開(kāi)采。 - As for the reform of enterprises, our chief goal is to invigorate the large and medium-sized state-owned ones.
企業(yè)改革，主要是解決搞活國營(yíng)大中型企業(yè)的問(wèn)題。
