短語詞組短語uneven subsiding 不均勻沉降drainage subsiding 排水下沉land subsiding 地層下陷subsiding mechanism 地麪塌陷機(jī)理subsiding wind 定風(fēng)subsiding speed 沉降速度subsiding column 陷落柱compaction subsiding 壓密下沉subsiding region 下沉區(qū) 返回 subsiding