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

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。

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A constriction in a powder pump that USES compressed air to lift and transport powder from feed system to the spray gun.

在粉末泵中的收缩能够使压缩空气从喂料系统到喷粉枪提升和搬运粉末。

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More specifically, the spray bar includes one or more manifolds connected to dedicated feed lines each having a spray head, resulting in improved lateral spray distribution.

更具体地，喷杆包括与各自具有喷头的专用输送管路相连的一个或多个歧管，从而改进横向喷流分布。

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The rain simulator has 4 in-line spray nozzles, which are feed by a pressurized portable pipe system.

UNESCO: AQUATACAMA

Blazars are a special case of "active galaxies" - those whose supermassive black holes spray out great quantities of light across the whole electromagnetic spectrum as they feed on surrounding matter.

BBC: Blazar Markarian 421's flare-up is cosmic coincidence