stand by current 中文意思是什麼
stand by current
解釋
維持電流-
The method proposed in this thesis do well in solving the problems of multi - damping - ratio - spectra simulation. it is convenient to obtain the pareto optimal solution set of the multi - object question by using implicit parallel genetic algorithms and the method can meet the practical needs for simulating ground motions coinciding with multi - damping - ratio - spectra in seismic design. the crossing rate and variance rate are important parameters of genetic algorithms which affect the rate of convergence, the adapting rate of cross and variation in this paper can auto - adapt and according to stand or fall of current sample, it assures the sample approach to the pareto optimal solution set in fast convergent speed
較好地解決多阻尼比反應譜擬合問題；本文方法通過一次運行就能獲得一組具有集系特性的地震動，在擬合多阻尼比反應譜的人造地震波集系的模擬方面有傳統方法所不能比擬的優勢，產生的人造波或人造波集系可滿足工程抗震設計需要；在遺傳演算法中，交叉概率和變異概率是影響收斂速度的重要參數，本文採用的改進自適應交叉概率和變異概率，可以根據當前樣本的好壞程度來自動地選擇適當的交叉概率和變異概率，以保證演算法始終以較好的速度向pareto最優解集逼近。 -
Such survey, research, contrast and analysis lead to the author ' s positioning of current status of county economy development of the yuanmou county as follows : 1 ) yuanmou is a county typically sustained by agriculture and thus has the characteristics of its kind along with other basic characteristics of mountainous counties ; 2 ) it has lagged far behind the development of the rest of the country, with an economic size accounting to merely 25 % of the average of other counties of china, or 50 % of other counties of yunnan ; 3 ) natural advantages have enabled the tropical crops and green agriculture to stand out as the leading industries, which, together with the discriminative planning and effective efforts of the local government, has resulted in the emergence of the promising " dinosaur economy ; " and 4 ) under - development of industry, now the weakest point of economy of the county, has always been hindering the rapid growth of the local economy and worrying the county leadership, suggesting that industrial restructure and accelerated development of the second and third industries are a tough but inevitable task to tackle
通過調查、研究、對比、分析，將元謀縣域經濟發展的現狀定位在：元謀縣是邊疆少數民族地區典型的農業縣，具有農業主導縣所具有的典型特徵，同時也具有山區縣經濟類型的基本特徵；與全國縣域經濟的平均水平相比差距較大，為25左右；與雲南省的平均水平相比僅為50左右；元謀縣由於具有一定的自然優勢，其熱區作物、綠色產業已經非常突出地成為了該縣的主導產業，加之政府能動力發揮得較好，其「龍型經濟」正在逐步形成，發展勢頭看好，縣域經濟的規劃、發展思路清晰明了；工業仍然是元謀縣經濟發展最為薄弱的一環， 「無工不富」是時時懸在縣委、縣政府頭上的一個警鐘。產業結構的調整，二、三產業的大力發展是元謀縣無法繞開而又必須面對的非常艱巨的任務。 -
The current proportions in the jetta, bora a4, golf a4 and caddy made by the venture stand at 98 per cent, 65 per cent, 60 per cent and 40 per cent respectively
截至目前，宇通公司依託先進的客車製造技術，已在深圳廣州蘇州寧波九寨溝等沿海發達地區及熱點旅遊景區大批進駐。 -
Reciprocating internal combustionengine driven alternative current generating sets - generating sets capable of being used as emergency stand - by source for supply of safety installations
由交流發電裝置驅動的往復式內燃機.可用作供電安全設施的應急輔助供電源的發電裝置
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