The chloride ion has important effect on photodegradation in aqueous solution of lomefloxacin and results in producing chlorine derivative as the highest photodegradation product.
洛美沙星盐酸水溶液的光降解随离子强度的增加降解速率也增加，在水溶液中氯离子对其光降解有极大影响并生成高产率的氯取代衍生物；
In many problems of mechanics and physics there frequently appears the differential equation with the derivative term of the highest-order containing small parameters.
在很多物理和力学的问题中常出现最高阶导数项带有小参数的微分方程。
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