key enterprise的用法和樣例：
例句
- TY is a large-sized backbone enterprise.
工業(yè)等設備的大型骨干企業(yè)。 - Department of Water Supply Equipment Co., Ltd.Daejeon Daejeon Group key enterprises, is the Ministry of Construction of water supply and drainage equipment chapter members.
大田給水設備有限公司系大田集團下屬骨干企業(yè)，是建設部給排水設備分會(huì )的會(huì )員單位。
