threshold zone 中文意思是什麼
threshold zone
解釋
境界區-
A lot of data of elevation in different places of the shallow water of n antong were obtained by fish - exploring machine and gps determining and tide cor recting. an image which reflects landforms of nantong was obtained by selecting f rom the many noaa images on different channels and in different phases. based on the image, grey scales corresponding to different places were obtained. by using c la ssifying liner regression technique, liner regression equations were established between the elevation and grey scale, and the threshold values of grey scales of the different elevations were determined. according to the threshold values, the a reas of the tidal zone above different elevations of the shallow water of nanton g were estimated
通過利用gps及漁探器實測，並進行潮位訂正，獲得南通淺海海域大量測點的高程資料；通過對多時相各通道noaa衛星照片進行篩選，挑選能反映淺海地貌的通道資料，從中讀取各測點相對應的灰度值，在此基礎上利用分級線性回歸，建立不同高程范圍內的高程、灰度線性回歸方程，確定不同高程的灰度閾值，從而測量出南通市淺海海域不同高程以上的潮間帶面積、分佈。 -
In aim solver, the convergence rate depends on spectral properties of the aim matrix, and the near - zone threshold distance has a dramatic impact on the memory and cpu time. a poorly conditioned matrix occurs through aim when a smaller near - zone
另外，自適應積分方法計算中，在保證計算精度的條件下，較小的耦合距離將極大減小內存需求和計算的復雜度，但同時誤差積累也導致矩陣的性態變壞。 -
The fining grains of al - l % si could accelerate the fatigue crack propagation from the near threshold zone to paris zone
隨著疲勞裂紋擴展速率從近門檻值區向paris區過渡，細小的a （ a1 ）晶粒會加速疲勞裂紋的擴展。
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