Methods 88 cases of children, who have got functional bellyache, were classified to the control group and the therapy group at random, therapeutic effect and side effect were observed during 4 weeks.
方法将88例功能性腹痛患儿随机分为对照组和治疗组，治疗4周，观察疗效及副作用，比较两组疗效是否有差异。
The effect of the molecule structure, molecule weight, functional group density of the prepolymers and diluent monomers on hardness, flexibility of cured products has been investigated.
研究了齐聚物和稀释单体的分子结构、分子量大小、反应性官能团密度对固化物硬度、柔韧性的影响规律。
The effect of the molecule structure, molecule weight, functional group density of the prepolymers and diluent monomers on hardness, flexibility of cured products has been investigated.
研究了齐聚物和稀释单体的分子结构、分子量大小、反应性官能团密度对固化物硬度、柔韧性的影响规律。
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