fourth sound

基本解释

Fourth heart sound correlated with damage of left ventricular function and compliance.
第四心音与左室功能损害及室壁的顺应性差有关。
The design method of fourth order sound band pass loudspeaker enclosure is analyzed in the paper.
主要分析了四阶声带通型音箱的设计方法。
“From the first, second, third and fourth editions all sound and sane expressions of opinion must be left out, ” Twain instructed them in 1906.
“在第一、第二、第三直到第四版中，所有合乎理智，正确合理的观点表达必须剔除，”吐温在1906年主持了这些修订。

And that odd buzzing sound continued until well into the fourth quarter.
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That dream had grown from small beginnings: from him, a student at the University of Illinois in Urbana, hanging round a huge old mainframe computer on the night of the Fourth of July in 1971, with the sound of fireworks still in his ears.
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Maersk does expect some improvement in rates in the fourth quarter, but management has little incentive to sound positive just yet--raising the company's outlook won't necessarily help with rate negotiations.
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