染织行业的浆染生产废水具有浓度高、色度大和含有大量难降解有机物的特点，属于难降解、污染重的工业废水。
The starching-dyeing wastewater is characterized by high concentration, high color, and high content of refractory organic matters, and is of refractory and heavily polluted industrial wastewater.
本文通过对几位主要作家及其作品的具体评析，指出他们的两难抉择，并阐明哈莱姆文艺复兴的二重性。
This paper explores the dilemma these writers faced in reference to their representative works, and goes on to expound further what it sees as a dual character of the Harlem Renaissance as a whole.
急诊患者具有急、危、重、难等特点，并要求在较短的时间内必须做出正确的判断。
The patient always has the feature, such as: acute, dangerous, severe, difficult, and we should judge the situation in fairly short time.
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