Research on the Differential Voltage Protection for High Voltage Shunt Tank Capacitor;
箱式高壓并聯(lián)電容器電壓差動(dòng)繼電保護(hù)的探討
This paper reviews the applicability of the two expressions of the box model on Urban Agglomeration Development Plan for Chengdu Plain.
本文討論了大氣環(huán)境箱式模型的兩種表達(dá)方式在成都平原城市群規(guī)劃中的適用性,并采用箱式模型計(jì)算成都平原城市群主要城市的大氣環(huán)境容量,通過對(duì)不同假設(shè)條件的用地布局方案的大氣環(huán)境容量計(jì)算和比較,對(duì)規(guī)劃方案確定的南北軸線主要城市空間發(fā)展提出了限制性條件,使規(guī)劃方案符合大氣環(huán)境容量的要求,以確保環(huán)境空氣質(zhì)量目標(biāo)的實(shí)現(xiàn)。
Based on the principle of conservation,using the box model to analyze the changing law of(pollutant) concentration in the box along with the time and space.
通過對(duì)川西古鎮(zhèn)大氣環(huán)境污染特點(diǎn)的分析,根據(jù)箱體內(nèi)污染物“物質(zhì)守恒”原理,以箱式模型為基礎(chǔ),推導(dǎo)出箱體內(nèi)污染物之濃度隨時(shí)間和空間的變化規(guī)律,建立了適合于川西古鎮(zhèn)大氣環(huán)境容量的數(shù)值計(jì)算模型。
With the box model,2D ADI tidal current equation and convectiondiffusion model,the exchange time of Xunjiang bay water is computated.
采用箱式模型、二維ADI流體方程和對(duì)流 擴(kuò)散模型計(jì)算潯江灣海水交換時(shí)間,分析潯江灣的水動(dòng)力特點(diǎn)和灣內(nèi)海水交換時(shí)空分布的特點(diǎn)。
Micrometeorological methods and enclosures/chamber methods for estimating the forest CO_2 flux were introduced in this paper.
介紹了測(cè)量森林生態(tài)系統(tǒng)CO2 通量的微氣象法和箱式法。
A genetic algorithm was applied to the optimal design of a box type fin tube heat exchanger.
文中將遺傳算法應(yīng)用于管箱式翅片管換熱器的優(yōu)化設(shè)計(jì)中 ,以傳熱面積與換熱器芯體體積之比為目標(biāo)函數(shù) ,詳細(xì)討論了算法的優(yōu)化步驟及工作流程 ,為管箱式翅片管換熱器的優(yōu)化設(shè)計(jì)提供了參考方法。
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