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1)  low degree settlement
低级沉降
2)  downbeat [英]['daʊnbi:t]  [美]['daun'bit]
下降;低沉
3)  classification sedimentation
分级沉降
1.
According to the characteristic of high suspended substance concentration of wastewater from hydrocyclone in carclazyte workshop of a catalyst production plant, the technology of classification sedimentation was applied to reclaim the carclazyte catalyst and the recovery ratio was more than 80%.
针对某催化剂厂全白土车间旋液排放废水中悬浮物含量高的特点,采用分级沉降技术有效分离旋液废水中所含的白土催化剂,催化剂的分离率不低于80%;对分级沉降后的废水利用聚合氯化铝+助剂在废水温度为40~55℃、沉降时间为10min下进行处理,在聚合氯化铝最佳用量为80。
4)  classification of sedimentation,settling classification
沉降分级
5)  primary settling
初级沉降
6)  To reduce in rank.
降低级别
补充资料:低级趣味
1.指庸俗的思想情趣。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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