差发
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动脉血-肺泡气氮分压差老年原发性高血压动态血压及脉压的特点
Arterial-alveolar N2 difference Characteristics of 24 h dynamic blood pressure and pulse pressure in aged patients with essential hypertension
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一如许多刚刚走出校门,从事待遇微薄的实习生工作的大学生,我有时心情很差,总想发脾气。
Like many recent college graduates working as underpaid interns , I sometimes feel out-of-sorts .
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差一点就发脾气。
I almost lost my temper .
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从火用的角度对低温差下半导体温差发电器的工作性能进行了分析,提出了火用效率,用火用效率来作为低温差下半导体温差发电器的评价参数。
The performance of semiconductor thermoelectric generator which work at small temperature difference is analyzed by using the theory of exergy , exergy efficiency is presented and the performance of semiconductor thermoelectric generator which work at small temperature difference is evaluated with exergy efficiency .