making hollow; making meaningless
deindustrialization; deindustrialisation
中心市街地の空洞化が地方で進んでいる。
The hollowing out of city centers is advancing in rural areas.
製造業の流出が国内産業の空洞化を招いた。
The outflow of manufacturing has caused the hollowing out of domestic industry.
実質を伴わない形骸化した制度の空洞化が指摘されている。
The hollowing out of institutions that have become empty formalities has been pointed out.