DictionaryForumContacts

   Chinese
Google | Forvo | +
to phrases
钻井架
el. boring rig
eng.geol. boring tower
tech. rig
钻井架: 32 phrases in 8 subjects
Drilling11
Earth sciences1
Engineering geology2
Explosives and Explosive Ordnance Disposal1
Mechanics1
Nautical1
Oil / petroleum5
Technology10