meridional index 中文意思是什麼
meridional index
解釋
經向指數- meridional : adj. 1. 子午圈[線]的；最高的，全盛的。2. 南歐（人）的，法國南部人的；南方的。n. 南歐人，（尤指）法國南部人。
- index : n （pl es dices ）1 索引。2 指標，標準，標志。3 示[食]指 （＝index finger）。4 指數。5 【印刷】指...
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The main factors affecting the precipitation in the first stage of rainy season in fujian province are pacific sst in preceding june, the western pacific subtropical high area index in preceding may, the asia polar vortex area index in preceding september, the eurasian meridional circulation index in preceding april to june, the 500hpa height in northwest asia in preceding spring. the main factors affecting the precipitation in the second stage of rainy season in fujian province are pacific sst in preceding july and august, the northern hemisphere polar vortex area index in january in same term, the pacific polar vortex intensity index in preceding september, the 500hpa height in south europe in preceding summer
（ 2 ）影響福建省前汛期的主要因子有：前期6月太平洋海溫場、前期5月西太平洋副高面積指數、前期9月亞洲區極渦面積指數、前期4 - 6月歐亞徑向環流指數和前期春季亞洲西北部500hpa高度場；影響后汛期的主要因子有：前期7月太平洋海溫場、前期8月太平洋海溫場、同期1月北半球極渦面積指數、前期9月太平洋區極渦強度指數和前期夏季歐洲南部500hpa高度場。 -
A full mathematical model of optimal flow pattern design withengineering constraints was put forward, based on modern optimal control theory. an optimal flow pattern design was presented for optimizing meridional channel of axial flow turbine. according to integral optimization of turbine stages, a full physical model and mathematical expression were put forward for proposition of optimal flow pattern, including all performance parameters in turbine stages. this problem was further recast into a typical form control to maximize specific performance index such as work or efficiency of stage with given initial state, fixed terminal condition and constraints for part of state terminal variables. the program was also worked out according penalty function method and conjugate gradient method. the optimal distribution of c1ur1 ( r1 ) was obtained according to constraint conditions and maximized objective function
把近代最優控制論方法引入軸流透平葉片的設計，在優化的軸流透平子午通道內，建立包括透平級內所有性能參量的最優流型命題的完整的物理模型及其數學表達式，並歸化為一個在給定初始狀態、自變量終端固定、部分狀態變量終端受有約束的條件下，使級的某一性能指標（如級的功率）達到最優的最優控制問題，應用「代價函數法」及「共軛梯度法」編制計算程序，計算得到符合給定約束條件、並使目標函數取極值的最優環量分佈，結果是令人滿意的。
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