DictionaryForumContacts

   Chinese
Google | Forvo | +
to phrases
砾石排水沟
hydroel.st. gravel drain; gravel-filled drain trench
hydrol. rubble drain without pipe
砾石填充的排水沟
tech. gravel-filled drain trench
砾石 排水 沟: 2 phrases in 1 subject
Technology2