proved undeveloped initial reserves
... 探明的开发动用储量 proved developed producing reserves 探明未开发经济可采储量 proved undeveloped initial reserves 探明已开发经济可采储量 proved developed initial reserves ...
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proved undeveloped initial reserves
已探明的未开发初始储量
以上为机器翻译结果，长、整句建议使用 人工翻译 。