这段意思不对吧，原文是说这些工厂农场什么的都知道互相帮助，所以各单位冬天腌的菜都不同然后大家换着吃。
A so-called “backscratching” principle was rather popular between factories and collective farms. So they preserved different vegetables for winter.
美国每年有100亿农场动物专门供人食用，它们被看成是一个个生产单位，而不是有情的众生。
Viewed as production units rather than living beings with feelings, ten billion farm animals are exploited specifically for food in the United Statesevery year.
家庭农场曾经是最好的社会单位，克拉特农场就是它的缩影，然而，现在它们已经衰落，让位于生产牲口饲料的大机械化经营了。
The family farm as the prime social unit, of which the Clutters' was the epitome, has declined and given way to huge mechanised operations producing animal feed.
现在的农场是富于创业精神的企业单位，它只饲养能出售以赢利的家畜。
Modern farms are enterprising businesses which keep only the livestock that can pay its way.
因为那将需要每一个农民供养近两个单位的城市居民，而这将受阻于化肥、农场机械以及燃料的短缺。
That would require every farmer to sustain nearly two city dwellers, which a shortage of fertiliser, farm machinery and fuel precludes.
在1994年，成立的鸦哈自然资源管理单位，成立有机农场的训练课程。
Training courses for bio-farming has been made available at the Yeha Natural Resources Management Institute, founded in 1994.
通常，他们将无乙醇汽油销售给加油站（可以通过Pure-Gas.org查找）、游艇码头、赛车赛场、农场和其他一些希望使用无乙醇汽油的单位。
Often, this includes deliveries of ethanol-free fuel to gas stations (best found via Pure-Gas. org), marinas, race tracks, farms, and to various others who prefer ethanol-free gasoline.
通常，他们将无乙醇汽油销售给加油站（可以通过Pure-Gas.org查找）、游艇码头、赛车赛场、农场和其他一些希望使用无乙醇汽油的单位。
Often, this includes deliveries of ethanol-free fuel to gas stations (best found via Pure-Gas. org), marinas, race tracks, farms, and to various others who prefer ethanol-free gasoline.
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