主要的污染物是动物粪便、抗生素和激素、制革厂的化学品、用于饲料作物的化肥和杀虫剂。

The major polluting agents are animal wastes, antibiotics and hormones, chemicals from tanneries, fertilizers and the pesticides used to spray feed crops.

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本图主要负责为公司蒸馏设备的潜在买家编制标书，这些设备用于生产燃料、化肥、洗涤剂和其他产品。

His duties included drawing up bids for potential buyers of the company's distillation equipment, which is used in making fuels, fertilizers, detergents and other products.

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主要用于石油、化工、合成纤维、化肥、电站、冶金、食品及医药等输送腐蚀性及特殊要求的介质。

It is mainly used in oil, chemical industry, synthetically fiber, metallurgy, food and pharmaceutics etc. for transporting the corrosive liquid and the medium which has special requirements.

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