短語(yǔ)詞組短語(yǔ)land surface subsiding 地表塌陷slow land subsiding 緩慢沉降subsiding land 塌陷土地subsided and subsiding land 塌陷地mining subsiding land 採(cǎi)鑛塌陷地subsiding mined land 採(cǎi)煤塌陷地 返回 land subsiding