Sandwave and shallow buried gas are the main types on the Changjiang River sub aqueous delta, but on the Huanghe River subaqueous delta, they are landslide and erosioned textured bottom mainly.是什么意思_Sandwave and shallow buried gas are the main types on the Changjiang River sub aqueous delta, but on the Huanghe River subaqueous delta, they are landslide and erosioned textured bottom mainly.在线翻译_英语_读音_用法_例句