可接受的

Air pollution in the city had reached four times the acceptable levels.

这座城市空气污染程度曾高达可接受四倍。

The synthesis of fluorine substituted saponite was explored and suceeded under mild temperature hydrothermally.Microwave-hydrothermal synthesis of sapontie was performed first time.

对于层状材料微波水热快速合成研究也进行了首次探索，发现可以在可接受合成条件下得到具有三八面体结构皂石。

Please note that it is perfectly acceptable to have a Pembroke Welsh Corgi that is black and tan with no white, but a Pembroke Welsh Corgi that is black and white with no tan present is a mismark.

请注意它是可接受完美PWC,它有和褐无白，但是PWC这和白无褐是错误记。