目前,密封铅蓄电池仍然是混合电力系统的首选电源。
At present, the sealed lead-acid battery was still the preferred power battery for hybrid electric system.
指出大功率脉冲叠加电源是铝及铝表面硬质处理的首选电源。
It was shown that high power pulse superposition current supply was the optimum choice for hard surface treatment of al and al alloys.
柴油发电机组以其结构紧凑、占地面积小、热效率高、起动迅速、控制灵活等特点成为备用电源或应急电源的首选。
Diesel generating set had become the preferred backup or emergency power because of these characteristics: tight structure, small size, thermal efficiency, rapid start, flexible control.
柴油发电机组以其结构紧凑、占地面积小、热效率高、起动迅速、控制灵活等特点成为备用电源或应急电源的首选。
Diesel generating set had become the preferred backup or emergency power because of these characteristics: tight structure, small size, thermal efficiency, rapid start, flexible control.
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