义务 – phrases

Terms for subject Oil / petroleum containing 义务 | all forms | in specified order only

Chinese	English
不可转让义务	nonassignable duty
义务井	obligatory well
义务的	honorary
保密义务	duty of secrecy
勘探费用义务	exploration expenditure obligation
合同义务	contractual obligation
最小义务工作量	exploration obligation
法定义务	legal obligation
法定义务	legal duty
法律义务	legal obligation