石油、天然气地质储量是指导油气田勘探、开发，确定投资规模的重要依据。
Geologic reserves are an important factor to decide oil and gas exploration and exploitation as well as investment sum.
对决策者确定合理投资规模、方案决策和创建具有核心竞争力的供应链有一定参考价值。
It has reference value for decision-marker to make certain reasonable investment scale, plan decision and establish supply chain of the core competitive ability.
深基坑工程具有投资规模大、不确定性因素多、施工技术复杂、社会影响大等特点。
Deep excavation engineering is characterized by vast construction investment, many unpredictable factors, complex construction technology and great society influence.
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