例如, 在1835年, 史密斯买回了一些古埃及纸草.For example, in 1835, Smith bought some ancient Egyptian papyruses.纸草也是下埃及的象征物.The papyrus plant was also the symbol of Lower Egypt.纸草: 埃及的芦苇草.最早期的纸是用它制成.Papyrus: Egyptian reed form where the ea...
This study presents a new single - stage single - switch PFC flyback DC converter.文章研究了一种新型 单级 单开关PFC反激变换器.A novel multi - output forward - flyback converter with secondary side post regulation is proposed.详细分析了一种运用了后级调整...
Nearly 60% of our bookings come from repeat business and personal recommendation.我们近60%的订单来自于回头客和熟人介绍。The decision was made on the recommendation of the Interior Minister.决议是根据内政部部长的提议作出的。The WHO recommendation has no le...