紫外线和氯先后作用的消毒效果优于紫外线和氯同时消毒。
However, different combination modes and different doses of UV and chlorine affect the inactivation effect.
方法收集33例先后作CT和TVS检查的女性盆腔肿块病例，均经手术和病理证实。
Methods 33 eases of female pelvic masses confirmed by operation and pathology were retrospectively studied with CT and TVS.
先后作为哈佛经济系的返回本科生和博士生，我上过他的高级经济理论和经济思想史的课程。
First as a returning undergraduate and then as a doctoral student in economics at Harvard, I attended his courses on advanced economic theory and the history of economic thought.
采用含碱性成纤维细胞生长因子和表皮生长因子培养基先后作用培养的方法是获得神经干细胞的有效方法。
Ordinal treatment of basic fibroblast growth factor and epidermal growth factor is an effective method to obtain neural stem cells.
采用含碱性成纤维细胞生长因子和表皮生长因子培养基先后作用培养的方法形成神经干细胞克隆率最高(0.630%)。
Clone rate of neural stem cells was the highest (0.630%) using ordinal culture of basic fibroblast growth factor and epidermal growth factor.
采用含碱性成纤维细胞生长因子和表皮生长因子培养基先后作用培养的方法形成神经干细胞克隆率最高(0.630%)。
Clone rate of neural stem cells was the highest (0.630%) using ordinal culture of basic fibroblast growth factor and epidermal growth factor.
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