central grading 中文意思是什麼
central grading
解釋
中心級放-
Adopt the mean of analyzing the factors which influence the output of the crops to quantity and determine the factors, assess the correlation among the grading factors in the units and calculate the point value of these factors ; determine the weigh value of the factors. ten factors, which are content of organic matter, thickness of soil layer, quality of soil, pickled degree of land, condition of irrigation and state of shelter belt, the degree of land " s leveling, central focus region ( focus region location ), utilization method of soil, are chosen as grading index at last
本文採用因素法定量化評價各地塊定級單元的相關性和權重性，最終選定了有機質含量、土層厚度、土壤質地、鹽堿化程度、排水能力、灌溉保證率、防護林完整度、條田平整度、中心區位，土地利用方式等因子作為定級的指標，使用了加權加和因素法進行了的定級計算，逐步完成了農用地質量情況的評價，劃分出了級別。 -
Public hearing on grading of queen s pier, central
就中區皇后碼頭的評級舉行公開聽證會 -
It analyzes the factors such as the partition of all the same layer, net power flow and distribution level to optimized routing adjustment of reactive power and voltage regulation of all power plants and substations, including local and globe. it makes power flow available and meet the need of the reactive power balancing and the reverse voltage regulation by combining the reactive power balancing principle of voltage - grading & district - dividing and local reactive power compensation with feasible power flow regulation, the reverse voltage regulation of central point voltage
該方法將無功的分層分區平衡與就地補償原則以及中樞點電壓的逆調壓原則引入到潮流的可行解調整策略之中，通過全網同層區的劃分及其網路潮流和負荷水平的計算分析，來實施對各發電廠和變電站的電壓與無功的全局或者局部的試探調整，以保證潮流的可行，並盡可能滿足無功的合理平衡與電壓的逆調壓要求。
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