求翻译：本文还解释了房地产直接投资的资金流动性差的原因，通过日本房地产泡沫经济破灭的案例，总结了提高投资风险管理能力的重要性及方法。是什么意思？

The article also explains the causes of poor liquidity of real estate direct investment by Japanese real estate bubble economy burst in the case, summed up the importance of and methods to improve the investment risk management capabilities.

This article also explains the real estate investment funds for poor mobility, through the Japanese real estate bubble burst, the case summary of the investment risk management the importance of capacity building and methods.

This article also explained the real estate direct investment fund fluidity bad reason, the case which is disillusioned through the Japanese real estate bubble economy, summarized the enhancement investment risk managed capacity importance and the method.

This article also explains the reasons for illiquid direct real estate investment funds, through the Japan case of the real estate bubble burst, summed up the importance of improving the investment risk management capabilities and methodology.

正在翻译，请等待...