ellipsoidal head 中文意思是什麼
ellipsoidal head
解釋
半橢球面封頭- ellipsoidal : 橢面的
- head : n 1 頭，頭部，首。2 頭腦，才能；智力，想像力，理解力。3 前部，上部；頂端，尖突部；船長；（書頁等...
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Abstract : based on the basic concept of the revolving shell, the equation of the middle surface generatrix of the approximate ellipsoid portion of the ellipsoidal head is derived, the unwrapped area and the unwrapped diameter of the ellipsoidal head are calculated, the result is compared with that of derived from the real ellipsoid and that of calculated from the empirical equation, relative chart and code are given out, which could be used by manufactures for reference
文摘:根據回轉殼體的基本概念，推導了橢圓封頭的近似橢圓殼部分的中面母線方程，據此推導計算了橢圓封頭的展開面積及展開圓直徑，並根據橢圓殼幾何形狀推導的結果與經驗公式所得結果進行了比較，給出了有關圖表及計算程序，可供製造單位參考使用。 -
Leakage of high pressure ammonia preheater pipe and ellipsoidal head in the joint production of melamine with urea is introduced, hazard and reasons of leakage are analyzed to put forward the methods for prevention of similar accidents
摘要介紹了三聚氰胺尾氣聯產尿素裝置的高壓氨預熱器列管及封頭發生泄漏的情況，分析了泄漏產生的危害及原因，提出了防止類似事故發生的方法。
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