Method: Discuss the relations between the rational use of antimicrobial agents and the post effect, time dependence, concentration dependence, resistent of antimicrobial agents.
方法：讨论抗菌药物后效应、时间依赖性和浓度依赖性抗菌药物以及细菌耐药问题与合理使用抗菌药物的关系。
ResultsHerba Scutellariae Barbatae inhibited the growth of PG cell with the relations of time-effect and dosage-effect.
结果不同浓度的半枝莲含药血清对肺癌细胞PG增殖有抑制作用，且呈明显的时效和量效关系。
In this paper the author analyzes that Time Dilation Effect and Length Contraction Effect in special relativity have no relations with acceleration but velocity.
分析了狭义相对论中的钟慢效应和尺缩效应只与速度有关而与加速度无关。
In this paper the author analyzes that Time Dilation Effect and Length Contraction Effect in special relativity have no relations with acceleration but velocity.
分析了狭义相对论中的钟慢效应和尺缩效应只与速度有关而与加速度无关。
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