upper limit of variation 中文意思是什麼
upper limit of variation
解釋
上偏差-
The greatest quantity or degree reached or recorded ; the upper limit of variation
最大限度,上限所達到或記錄下來的最大數量或最高程度;最高限度 -
Abstract : tensile reducer is one of the necessary apparatuses during the pipe production process at present. this paper deduces a multi - variation formula by using the energy principle and adopting upper limit method. the formula can be used to calculate the parameters such as the drive power, tensile coefficient, roll speed, depth of exit pipe wall, hole type ellipse etc. the existence of minus drive power has also been theoretically calculated
文摘:張減機是鋼管生產中不可缺少的設備之一.本文從一般能量原理出發,採用上限法推導出一個多變量公式,利用該公式可求解電機功率、張力系數、軋輥轉速、出口鋼管壁厚、孔型橢圓度等參數,並且從理論上計算出電機負功率的存在
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