erosionn.腐蚀；侵蚀；减少，流失erosion process侵蚀过程erosion control侵蚀防治,冲刷防护,防冲erosional basin侵蚀盆地,冲刷盆地erosional glacis侵蚀斜堤erosion pavement防侵蚀砾层erosion reagents侵蚀剂erosional valley侵蚀谷erosion of penis阴茎糜烂erosion reaction侵蚀反应erosion sediment侵蚀产沙