purify air by filtration 用过滤法净化空气
METHOD:To separate and purify by D-101 macroporous resin and to determine the quality of dexamethasone acetate by UV spectrophotometry.
方法:采用D-101大孔树脂分离纯化、紫外分光光度法测定皮炎宁中醋酸地塞米松的含量。
Hindus purify themselves by bathing in the river Ganges.
印度教徒在恒河中浸泡借以涤罪。
Said tower can be used to purify the gas recycled by the debutanization tower.
所述塔可用于净化所述脱丁塔回收的气体。
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