歐幾里得模量 的英文怎麼說
中文拼音 [ōujīlǐdemóliáng]
歐幾里得模量
英文
Euclidean norm- 歐 : 名詞1. (姓氏) a surname 2. (歐洲的簡稱) short for europe
- 幾 : 幾代詞1. (多少, 用於詢問數量和時間) how many 2. (表示不定的少數目) a few; several; some
- 里 : 里Ⅰ名詞1 (襯料; 紡織品的反面) lining; liner; inside 2 (里邊; 里邊的) inner 3 (街坊) neighbo...
- 模 : 模名詞1. (模子) mould; pattern; matrix 2. (姓氏) a surname
- 量 : 量動1. (度量) measure 2. (估量) estimate; size up
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Secondly, their aims are made the investment of substations, feeders or running cost of electric power system minimum. but they do n ' t take into account of land utilization, street accessibility of right of way, etc., but demands of electric power system. generally, a straight line distance, namely, euclid distance, was used for calculating the distance between a load point and a substation, which is a straight forward but non - practical way for most planning techniques
其次受研究工具的限制,這些模型以工程投資、運行費用等最小為目標,僅能考慮導線載流量、電壓降等電力系統技術約束條件,簡化略去了用地限制、街道可達性等重要的自然約束條件,且求解這些模型的前奏是計算負荷點到變電所的歐幾里得距離(直線距離) ,簡便但不切合實際(這一點在城市電網規劃中尤其重要) ,因此較難給出技術上可行的最優解。
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