共 50 条
- [1] EC okays fertilizer, polyethylene deals [J]. CHEMICAL & ENGINEERING NEWS, 1998, 76 (01) : 10 - 11
- [3] BHP billiton okays major projects at Ekati and Worsley [J]. E&MJ-ENGINEERING AND MINING JOURNAL, 2004, 205 (06): : 4 - 5
- [4] STATE MAKES IT TOUGH TO GET OKAYS FOR NEW PROJECTS [J]. E&MJ-ENGINEERING AND MINING JOURNAL, 1978, 179 (11): : 106 - 107