visual magnitude 中文意思是什麼
visual magnitude
解釋
目測星等-
Jupiter is the second brightest planet after venus. the visual magnitude of jupiter is around - 2. 5 a few weeks before and after the opposition
木星是除金星外最光亮的行星，木星沖前後幾星期，其視星等約為- 2 -
With the using of microsoft visual basic 6. 0, a multimedia computer - aided design system of small type pumping irrigation district is developed in this paper. provided with the live multimedia messages as well as a good man - machine conversation mechanism, this system can help the user to finish the planning of an pumping irrigated area such as the layout of canal system, the selection of pump models, the establishment of the irrigation program, the calculating of canals " parameters, the estimate of the project magnitude, the selection of the field constructions, the economic analysis of the project, the output of results, etc, a new oo ( object oriented ) programming method is adopted in this system, various softwares are integrated in this systems as well by the " automation " technic provided by vb, in addition, the multimedia technic is applied to this system for the first time, it makes the system easy to ope rate. as for the optimization of the canals " section, a new optimization method is adopted based on the existing theories about the canals " section, and in this way, with the purpose of minimizing the project ' s investment as well as a stalized canal, limited by the longituding slope, the canals " best feasible parameters can be deduced. furthermore, a integral method to reckon the earth work is developed in this paper, by this way, the estimate precision of the earthwork is enhanced notably. this paper includes the particular illumination for the developing procedure of each systems " segment, and in the end, the directions of the system are demonstrated in a sample area which lies in the zhaija village, taizhou city, jiangsu province, the running results showed that the initial purposes are achieved effectively, and it has a preferable practicability
在渠道縱橫斷面優化方面，本文在利用已經比較成熟的縱橫斷面優化理論的基礎上，提出以工程總費用最小為目標函數，以渠道縱坡i為控制變量，以渠道不沖不淤流速及灌區允許地面比降為約束條件，通過縱橫斷面聯動優化的方法得到渠道的最佳工程可行的斷面參數。另外，針對部分地區的取土困難的狀況，本文採用積分法計算渠道工程土方量，從而大大提高了土方量的估算精度，有助於準確控制工程投資規模及資金投向。本文詳細闡述了該系統所採用的編程方法、系統構成、系統各組成模塊的開發過程以及灌區規劃所採用的優化方法及原理，最後應用本系統對泰州市翟家村機電灌區進行規劃設計，運行結果證明其操作比較簡便，界面友好，運行速度快，規劃成果合理，基本達到了系統預定的要求，具備較強的實用性。 -
Sts produces substantially better visual results. sts is faster than lic ( linear integral convolution ) texture - based method. 2 ) in order to overcome the lic ' s shortcoming that only presents direction of the vector field, multi - granularity lic and image blend technique which can present the magnitude and direction at one time are proposed
2 ）提出了多粒度lic紋理和圖象混合技術，它們能很好地同時表示矢量的大小和方向，從而克服了lic紋理方法只能表示矢量方向而不能表示矢量大小的缺點。 -
Stationary photography should be supplemented with visual observation. by comparing these two sets of data, we can deduce the exact positions where the meteors appear, and the magnitude of the faintest meteors that are captured
攝影要與目視觀測互相配合，記下同一天區的流星資料，以便進行比較，可從底片上倒算出其實際位置，又可得知被拍到的流星的最暗星等。 -
This star is a red giant with a visual magnitude of 17
這顆恆星是一顆紅巨人與一個視覺幅度17
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