contracted area 中文意思是什麼
contracted area
解釋
收縮區- contracted : adj. 1. 收縮了的，縮小的；縮略的；（心胸，思想等）狹小的；貧困的。2. 訂過（婚）約的。adv. -ly ,-ness n.
- area : n. 1. 面積；平地；地面。2. 空地；〈英國〉地下室前的空地。3. 地區，地方；〈比喻〉區域；范圍。
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Now, it contracted obviously the disparity with whole country advanced level and raised the testing accuracy and research levels that the research institute whose experiment area is big and the devotion value is high, purchased lately a number of advanced experiment instrument equipments and software, for instance, model machine quickly, tri - coordinate measure machine, laser 3d scanners, multicenter vibration test and analysis system, electronic all - powerful experiment machine, hydraulic presses servo fatigue test machine, festo machine electricity to imitate manufacture system, the software of cad / cam / cae and so on
如今，研究所的實驗面積大、投入價值高，新購置了快速成型機、三坐標測量機、激光三維掃描儀、多通道振動測試與分析系統、電子萬能試驗機、液壓伺服疲勞試驗機、 festo機電模擬生產系統、 cad / cam / cae軟體等一批先進的試驗儀器設備和軟體，明顯縮小了與全國先進水平的差距，提高了試驗的準確性和科研水平。 -
First according to the fact that tangential components of the evolution do not affect the geometric shape of the evolving curves, we introduce the evolution equation of geometric quantities for the general planar curves. then we describe the work of gage - hamilton briefly. last we consider a special curvature flow of curve which evolves with speed function of the principal curvatures along the inner norm and show that convexity of the curve is kept and its length and area are contracted if the initial closed curve is smooth and convex. so the final shape of the curve will be a point in finite time
首先根據曲線在切向分量上發展是不影響曲線的發展形狀，我們引入了曲線的一些幾何變量的發展方程；其次我們簡要地回顧gage - hamilton研究曲線發展的一般步驟；最後我們考慮沿曲線的內法線以曲率的函數為發展速度的一類特殊的曲線族，證明了在初始曲線為凸的閉平面簡單曲線條件下，曲線將保持凸的，並且它的面積和周長將同時收縮，並在有限時間內成為一個點。 -
The lake basin range was widen and the deep lake subfacies developed in the researched area during chang7 stage. the lake basin range contracted when it got to chang6 stage. consequently, the fan deltas, braided deltas, deltas, saucer lake and local deep lake facies developed in the area
長8期主要發育三角洲、扇三角洲及辮狀河三角洲，而且以前緣亞相為主；進入長7期，湖盆范圍擴大，研究區以深湖相為主；至長6期湖盆范圍收縮，研究區發育扇三角洲、辮狀河三角洲、三角洲、淺湖和局部的深湖沉積。 -
In most of the villages, every household has been contracted to use a small area ( around 5 - 10 mu ) of forest to collect fire wood
在大多數村子，每家每戶都被允許在森林中的一塊很小的區域內（大概5 - 10畝） ，收集柴禾。 -
To all features extracted, we selected 12 features, for example, area, perimeter, six color features, two image edge moment features, and two fractal dimension features. considering practical situation, we contracted six color features to one dimension. therefore, we obtained seven efficient features in all
對提取的特徵進行選擇，共選擇出面積、周長、六個顏色特徵、兩個圖像邊緣矩特徵、兩個分形維數特徵等共12個特徵；結合具體情況，把六個鄭州大學工學碩士論文顏色待征壓縮為一維，因此共形成了七個有效特徵。
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