近年来，发现并投入开发了很多砂岩气藏，其探明储量和已动用储量都是很可观的。
Recent years, we have found and developed many unconsolidated sand gas reservoirs. The proved reserves and the produced reserves are very considerable.
近年来，发现并投入开发了很多砂岩气藏，其探明储量和已动用储量都是很可观的。
Recent years, we have found and developed many unconsolidated sand gas reservoirs. The proved reserves and the produced reserves are very considerable.
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