自始至终都有很强的节奏感,艾柯里诺·费雷蒂(Ercolino Ferretti)的《排箫与鼓》(Pipe and Drum)相对来说要形象许多,很像伴随排箫声与鼓声的民间歌舞;他的另一作品《三重奏》(Trio),出现了变形的合唱效果,和咏叹调般的歌唱...
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He started down the street, going like the wind. On he ran, and louder grew the sounds of pipe and drum.
他顺着那条街一阵风似地跑了起来。他越往前跑,笛声和鼓声就越响亮。
One-side arrangement for feed water pipe on drum is simple and the quantity of orifices on drum decreases, it adopts variable pitches in multi-orifices distributing pipe to balance water flow.
单侧进水的汽包配水管布置简单,并减少了汽包上的开孔数量,配水管上采用变节距分配孔以保证汽包长度方向上的均匀分流。
This paper focuses on effects of the valve characteristics and the transfer pipe delay on dynamic performance for boiler drum level, under varying valve opening of the feed water control valve.
本文着重探讨当给水调节伐门开度变化时,伐门特性以及管路传输迟延对锅炉汽包水位动态特性的影响。
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