Guangzhou Wei Fen Audio Equipment Factory is a development, production and sales of speakers, Sound Column, professional stage boxes business.

广州市奋威音响器材厂是一家集开发、生产和销售音箱、音柱、专业舞台箱的企业。

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In this paper, the resonance frequency of the sound column is investigated both theoretically and experimentally, and the efficiency of the sound column at resonant frequency is also calculated.

本文从实验和理论方面对声柱谐振时的频率进行了研究，并对声柱谐振时的效率作了理论计算。

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Meyer Sound also launched the Mina line array system and the CAL steerable column array - new products that may have been passed by in the heat of the moment.

Meyer Sound还推出了Mina线阵列系统与CAL可控柱式阵列系统——这些新设备也许当前正受着高度的关注。

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The horn obviously is a brass instrument and what makes the sound is a vibrating column of air.

显而易见的,圆号是个铜管乐器,它通过震动空气柱来发出声音

耶鲁公开课 - 聆听音乐课程节选

The vibrations of the lips, focused and amplified by the mouthpiece and directed into the tube, cause the column of air inside the tube to vibrate, and as in all wind instruments, the vibrating air column produces the sound of the instrument.

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This may sound faintly ridiculous, but the finished object looks like a deeply satisfying classical column.

ECONOMIST: American contemporary art

The question for this column, however, is whether the economic assumptions weaved into certain storylines are sound.

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