无论地下经济还是公开经济都存在税收流失问题。

There is tax losing either in underground or open economy.

youdao

地下水源热泵；节能性；经济性；回收期。

Ground water heat pump; Energy-efficiency; Cost-effective; Payback period.

youdao

地下水源热泵；节能性；经济性；回收期。

Ground water heat pump; Energy-efficiency; Cost-effective; Payback period.

youdao