他们确信他们已经找到了解决问题的办法：他们使用风车。
They are sure that they have found the answer to the problem. They use windmills.
能源公司也许会谴责其大量销售石油和天然气而宣传风车的使用，让人们觉得其产品很绿色很环保，但他们会继续销售石油和天然气。
Companies may brand their gigantic sales of oil and gas with greenwashing images of windmills, but they continue to sell oil and gas.
这个时期积累了大量的实践经验，很多农场仅仅靠使用风车就足以满足他们的用水需求，当然前提是计划周密。
A large amount of practical experience was developed during this period. Large, well planned farming projects were getting all the water they needed strictly using windmills.
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