line asymmetry 中文意思是什麼
line asymmetry
解釋
譜線不對稱性-
The recent researches on observations of h line profile asymmetry in chromospheric flare are reviewed. spectral properties, the corresponding mechanisms of asymmetry, and reproduction of observational spectrum by using semi - empirical atmosphere model are dicussed in detail. at last, the main problems to be solved and further researches are put forward
綜述了近年來太陽色球耀斑爆發時h譜線不對稱性的研究進展，著重討論了光譜特徵和與其對應的不對稱性產生機制，以及利用大氣半經驗模型再生觀測譜線輪廓不對稱性等方面，並提出尚待解決的主要問題和進一步的研究方向。 -
Tangyin substation is an important substation which has two transformer of 120mva, eight 220kv lines and three 110kv lines. tangqian line is a 110kv line specially for traction transformer substation. because traction load is high - power nonlinear and asymmetry. it will produce much harmonic and negatvie sequence current, which have done harm to compensation capacitors of tangyin substation. in recent years, the tang6c capacitor often interrupted and in 2001 july the tang7c capacitor ' s discharge pt exploded
湯陰變電站是豫北一座樞紐變電站，有2臺120mva的主變， 8條220kv線路和3條110kv線路，其中的湯牽線是專為牽引變電站供電的110kv線路。由於電力機車屬于大功率的非線性負荷，且三相不對稱，在其運行過程中必然會產生較大的高次諧波和負序電流。 -
The obtained results show that the pwm - fcl can limit the fault current quickly, and the unfaulted phase ( s ) and unfaulted line ( s ) will keep stable operation state when an asymmetry fault occurs
結果表明了pwm - fcl不但可以快速有效地限制住短路電流，並且在系統發生三相不對稱故障時，可以保證故障線路非故障相以及非故障線路的正常運行。 -
This paper introduces the three situations where the asymmetry of three - phase current takes place and proposes the calculation methods of the annexed line losses and of loss reduction when the addition of the three - phase current load is not equal to zero because of the asymmetry of the three phase load
摘要闡述了三相不對稱電流的三種情況，並提出了因三相負載不對稱而引起的三相電流相量之和不為零時的附加線損的計算方法及降損措施。
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