coal resources based city 煤炭资源型城市
CBM and coal resources 煤层气与煤炭资源
city coal gas 煤气
Coal City 科尔城; 煤炭城市
Coal Resources 煤矿资源; 煤炭资源; 原煤; 统煤; 车用燃料; 焦炉; 煤资源
coal resources assets 煤炭资源资产
Coal resources development 煤炭资源开发
Coal Resources Exploitation 煤炭资源开发; 煤炭开发
Coal Resources Exploration 煤炭资源勘查
coal resources integrating 煤炭资源整合
coal resources management system 煤炭资源管理系统
Coal Resources Market 煤炭资源市场
coal resources status quo 煤炭资源现状
coal resources survey 煤炭资源调查
Coal resources under buildings 建下煤炭资源
Coking Coal Resources 炼焦煤资源
Deep Coal Resources 深部煤炭资源
EXPLOITATION OF COAL RESOURCES 煤炭资源开采
loss of coal resources 煤量损失