Asthma is a chronic disease characterized by recurrent attacks of breathlessness and wheezing, which vary in severity and frequency from person to person.
哮喘是一种慢性病,以呼吸困难和喘息反复发作为特征,其严重程度和发作频率因人而异。
The parents' responses had a particularly strong effect on the frequency of symptoms in girls: reinforcing parental responses raised their risk of recurrent headaches by 25%.
父母的反应对女孩们频发的症状有一个特别强的作用:加强父母亲的反应增加25%头痛复发的风险。
A sensitivity predictive controller with memory recurrent network for use in the comprehensive control of the water hammer and the frequency is proposed.
提出一种对水轮发电机组水压频率进行综合调节的记忆递归网络灵敏度预测控制器。
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