In some cases, customers have significant investment in these layers as a way of capturing their organization's best practices for modeling and model transformation.

有时候，用户会重点投入到这些层，作为获取他们组织建模和模型转换最佳实践的途径。

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The two layers of taxation for public companies make common stocks a less than ideal investment medium for solar farms, unlike the private equity investments and LLCs used by large investors.

FORBES: Solar REITs: A Better Way to Invest in Solar [Updated]