全部

1·Slaughter waste water includes a lot of nitrogenous organic matter such as blood, pluck, hairs and soon, and it is easy to breeding large Numbers of deleterious microorganism.

屠宰废水中含有大量的血水、动物内脏、毛发等含氮有机质，而且容易滋生大量的有害生物。

2·The water heater with self-tight sealing under high pressure is a new type of equipment used for waste heat recovery from the synthesis system in the small nitrogenous fertilizer plants.

高压自紧密封水加热器是用于小氮肥厂合成系统余热回收的一种新型设备。