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生物稳定塘法
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生物稳定塘法
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生物稳定塘法
采用稳定塘技术的废水自然生物处理法,又称氧化塘法。稳定塘是一种天然的或经过一定人工构筑的污水净化系统。污水在稳定塘内经过较长时间的停留、储存,通过微生物(细菌、真菌、藻类、原生动物等)的代谢活动,以及一系列物理、化学、物理化学等过程,使污水的有机污染物、营养元素和其他污染物质进行转化、降解和去除。
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calibration field
calibration form
calibration for radio observation
calibration gas
calibration gas generating system
calibration in the radiative calibration site
calibration method of radioactivity instruments
calibration method with auxiliary sound source
calibration method with three reciprocity microphones
calibration model transfer
calibration of airborne radioactivity system
calibration of focal plane position of collimator
calibration of neutron measurement instruments
calibration of radioactive instruments
calibration of weights
calibration procedure
calibration source
calibration spectrum
calibration star
calibration system
calibration technique of engine test bed
calibration technology of engine intake air flow
calibration tool
calibrator
calibrator for extensometer
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