(verb: to explore [in natural mines]) The process of oil exploration and development will emit a lot of waste gas, which will cause air pollution. Bei der Ölexploration und -entwicklung werden viele Abgase freigesetzt, die zu Luftverschmutzung führen. Quá trình thăm dò, phát triển dầu khí sẽ thải ra nhiều khí thải, gây ô nhiễm không khí.
chất khí 
gas 
My car is running out of gas, do you know where there is a gas station nearby? 
Mein Auto hat kein Benzin mehr. Weisst du wo es in der Nähe eine Tankstelle gibt?