1690s, "spiral ornament on an Ionic capital," from French volute (16c.), from Italian voluta, from Latin voluta "a spiral scroll," noun use of fem. past participle of volvere "to turn around, roll" (see volvox). Extended 1756 to any spiral thing or part. As a type of spiral seashell, it is attested from 1753.
双语例句
1. Pump Volute - shaped shell made many, it is also called the volute.
泵壳多做成蜗壳形, 故又称蜗壳.
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2. In 1689, French Physical scientist , Papin, invented 4 - impeller volute centrifugal pump.
1689年, 法国物理学家帕潘发明了四叶片叶轮的蜗壳离心泵.
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3. Does liquid level ever drop below volute top?
水位是否总是位于涡流顶部?
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4. It is found that vane diffuser restrains the influence of the volute on the impeller.
发现了叶片扩压器对遏制蜗壳对叶轮内流场的影响有明显的作用.
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5. Technology of step tongue volute is introduced and applied to a centrifugal fan for discharging lampblack.
