垂準點 的英文怎麼說
中文拼音 [chuízhǔndiǎn]
垂準點
英文
plumb point-
Therefore, the method of screen spreading is presented herein with the following basic feature : taking the surface of the perpendicular line at the end of the distortion and bottom as the datum plane, move the controlling point of every distortion part to the datum plane with the principle of changeless of geometry size, and then the spreading is formed
為此提出一種屏幕展開方法，此方法的基本要點是，以扭曲面末端垂直線和底部起坡線所在的平面為基準面，將扭曲面各分塊的控制點按幾何尺寸不變的原則搬到基準面，即可形成展開圖。In the system, the collimation semiconductor laser - scanned beam scanning two perpendiculars direct of one plane of the measured workpiece at the same time is made. the beams with the dimension information of two perpendiculars direct are processed by the scanning receive system, the high - speed photoelectric transition and electronic data process. two measured results of the diametric directs and ellipse tolerance, etc, parameter, of the turning workpiece on the same plane are obtained by non - contact automatic measurement
在單向激光掃描檢測技術的基礎之上，提出了一種雙向激光掃描檢測系統，其採用激光掃描檢測技術與特殊光學系統相結合，用準直半導體激光掃描光束對被測工件徑向某一截面的兩個相互垂直方向同時掃描，經掃描接收光學系統、高速光電變換、電子學系統和微機數據處理系統，對將攜帶有垂直方向被測量信息的光束進行處理，實現了回轉體工件同一截面兩個垂直方向的徑向尺寸和橢圓度等參數的非接觸自動測量，解決了同時非接觸測量回轉體零件同一截面兩個徑向尺寸的難題，它具有高速，高精度和非接觸自動測量等特點。The detail is that starts from the fourth character image ( the middle of license plate ), centers it, and then segments every character seriatim to the direction of left and right. it makes full use of the feature of the image. the priori information of license plate does well with the character conglutination and character rupture and presents a nice pre - segment
本文主要採用了引入先驗知識、垂直投影和最小包絡等方法從中間第四個字元開始，向左右兩邊進行逐一分割的方法，充分利用了圖像本身的特點，引進的先驗知識不受字元的粘連和斷裂的影響，有很好的預分割效果，最後的綜合分割效果較好，為字元的識別造好了準備。Then the periodic properties of geocenter motion in the x, y, z components are summarized. considering the statistical precision of the gps observations, the geometrical distribution of gps stations and their physical stablility, a new method to determine the parameters of geocenter motion is studied and analyzed. in order to have a better understanding of its effect on the height datum origin, the rule of geocenter motion in the horizontal and vertical components are also analyzed and some useful conclusions are drawn
提出了將譜分析與抗差估計相結合的抗差譜分析方法，並用該方法分析了地心運動時間序列的主要周期特性；為合理地確定地心運動參數，詳細研究與分析了一種新的定權方法對求解地心運動參數的作用，該方法充分利用了gps觀測量的統計精度、點位的幾何分佈以及物理穩定性；為了明確地心運動導致的高程基準的變化，分析了地心運動對地面點的水平分量和垂直分量的影響規律。Then the origin vertical shift of cnhd85 with respect to whd is calculated from geopotentials. and the systematic difference and its distribution of cnhd85 is analyzed from the difference of height anomalies. at last, the systematic difference of the mean sea level at qingdao tide gauge is further testified from the sea surface topography model
然後基於位理論方法求出了1985國家高程基準點的垂直偏差，基於高程異常差分析了1985國家高程基準的系統差及其分佈規律，最後基於海面地形模型進一步揭示了青島驗潮站平均海平面的系統差。At their closest, the vertical distance between the two aircraft was 700 feet and the horizontal distance was 2. 5 nautical miles. the standard separation required was 1, 000 feet or 5 nautical miles
兩架航機最接近時的垂直間隔為七百尺，橫距則有二點五海里，標準間隔應為一千尺或五海里。E xperiments show that the amended method is better than that in reference 12. as the same time the method can combine with the wavelet transformation to locate the characters. by multi - resolution analysis and pyramid decomposition, the edge components with different spatial resolutions and different directions can be acquired, among which, the detail components have the most distinguished texture features standing for the object region, then by further morphological operations, the useless information is greatly decreased and the last object text region is acquired
分析了各個方向邊緣經小波變換后的特點，用具有良好時頻局部和變尺度特徵的小波分析方法提取出不同空間解析度，水平和垂直及對角線方向的邊緣子圖像，把滿足水平和垂直方向能量閾值區域進行合併，經過去噪后，用對角線方向能量閾值即高高頻能量作為判斷標準，確定是否是真正的字元區。At their closest, the two aircraft were 1. 4 nautical miles apart and the vertical distance was 500 feet instead of the standard separation of five nautical miles or 1, 000 feet
兩架航機最接近時的橫向間隔為一點四海里，垂直間隔則為五百尺，而標準間隔應分別為五海里及一千尺。分享友人