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| Chinese | English |
| 天然气开采 | natural gas extraction The tapping of natural gas from wells located under the sea and in general from underground sources often in association with petroleum deposits; it is used as a fuel, having largely replaced coal-gas for this purpose, and as a source of intermediates for organic synthesis (海下气井和地下天然气的开采一般都与石油矿床有关，它作为燃料被使用，为此在很大程度上取代煤气，以及作为有机合成中间体源。) |