The fourth industry Apple could potentially impact is the appliance industry.

苹果还可以进行改变的第四个领域是家电行业。

youdao

They even blame the government for talking down the nation's fourth biggest industry.

他们甚至指责政府贬低国家的第4大产业。

《柯林斯英汉双解大词典》

The world’s auto industry will suffer a fourth year of poor sales in 2011.

2011年，世界汽车工业将会遭遇到第四个销售低迷的年份。

youdao

The American auto industry was fourth on the list.

VOA: special.2010.01.02

The fourth threat facing the industry is its refinancing burden.

ECONOMIST: The buy-out barons say the worst is over. They would

Its so far successful facedown with the once-powerful mechanics' union may have broad echoes across a beleaguered airline industry as the nation's fourth-largest carrier takes a step toward getting its labor costs under control--a necessity if it's to avoid a bankruptcy filing this fall.

FORBES: Northwest Saves Its Skin

The reorganisation is the fourth since China first opened its telecoms industry to limited, state-orchestrated competition.

ECONOMIST: Telecoms in China