Greek letter, from Hebrew, literally "little mouth." As the name of the mathematical constant, from 1841 in English, used in Latin 1748 by Swiss mathematician Leonhart Euler (1707-1783), as an abbreviation of Greek periphereia "periphery." For the meaning "printer's term for mixed type," see pie (3).
雙語例句
1. We proposed P 2 I algorithm combined with proportional controller and PI controller.
提出了結合了比例控製器和PI控製器 特點的P2I算法.
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2. The carbonization and the graphitization of PI filament were described.
敘述了PI原絲的碳化和石墨化過程.
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3. Some AQM algorithms, such as REM and PI, explore this aspect.
隨機指數標記算法REM、比例積分控製器PI都在這方麵作了探索性的研究.
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4. PI controller made the respond speed faster and the overshoot less.
PI控製器使響應的速度更快,超調量更小.
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5. I am sending you the new PI now, please kindly check.