在沿海地区开采地下水，应当经过科学论证，并采取措施，防止地面沉降和海水入侵。
Exploitation of groundwater in coastal areas shall undergo scientific demonstration, and measures shall be taken to prevent sinking of land surface and encroachment by seawater.
经济效益估算：经过科学论证表明，该项目建成后将有丰厚的经济回报，利润率可达12.22%。
Estimated Economic Results: after the project is completed, its profit rate will be 12.22%.
这个计划经过了科学论证，在资金保证上作了周密的安排。
This two-year stimulus program has gone through scientific feasibility studies and is supported by a detailed financial arrangement.
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