目的研究急性呼吸窘迫综合征(ARDS)犬低容积段及常规压力-容积(P - V)曲线的特征，并探讨其产生机制。
Objective to investigate the characteristics and mechanism of low volume and regular pressure volume (P-V) curves in acute respiratory distress syndrome (ARDS) dogs.
该方案能在80 ~ 265 V宽输入电压范围内得到稳定直流电压输出，具有效率高、总谐波畸变率低、功率因数接近为1等特点。
It can achieve a fixed output of DC voltage in the universal input range of ac 80 ~ 265 V. It owns the advantages of high efficiency, low total harmonic distortion, PF near to 1.
低V领牛仔背心配衬特色钮扣和窝钉。
Deep V neck denim waistcoat detailed with buttom closure and studs.
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