normal elevation 中文意思是什麼
normal elevation
解釋
正常水位-
The parametric speed of the curve is firstly approximated by the bezier polynomial which takes the lengths of control polygon ' s edges of the direction curve of normal as bezier coordinates. then the corresponding geometric offset approximation algorithm is given. moreover, an offset approximation with high precision is obtained by degree elevation of the direction curve of normal
首先利用以法矢方向曲線的控制多邊形邊長為b zier縱標的b zier多項式來逼近曲線的參數速度，給出了相應的幾何等距逼近演算法，進一步結合法矢方向曲線的升階獲得了高精度逼近 -
The study is about a kind of 3 - year - old pharmaceutical plant t. media cv. hicksii. we set up 3 kinds of different illumination handles using the black sunshade net shading in the pharmaceutical plant garden of the southwestern normal university ( elevation is 250 meters ) of chongqing. the natural light intensity ( passing through light rate is 100 % ) is the contrast, consequently the passing through light rates of one - layer shading and two - layer shading are 50. 0 %, 12. 5 % respectively
本文以盆載（紫色壤土，盆高20cm ，直徑15cm ） 3年生的曼地亞紅豆杉（ taxusmediacv . hicksii ）為材料，于重慶西南師范大學藥用植物園內（海拔250m ）利用黑色遮陽網遮光，設置3種不同的光照處理，以自然光為對照（透光率100 ） ，一層遮蔭、二層遮蔭透光率分別為： 50 . 0 、 12 . 5 。 -
Now the 2d precision of spatial points is very great, but because by usual correlation fitting method we can transfer gps ellipsoidal height into normal height of the local geoid is considered as mathematical curve plane, it is not conform the fact of mountainous districts so the precision of elevation is so small that it is not satisfied with the requirement of leveling
目前，地面點的平面位置確定精度已相當高，但高程精度始終未能達到水準測量的要求，因為將gps大地高轉化為水準正常高的擬合推估方法是將局部大地水準面視為數學曲面，常常與實際情況差異較大（特別在西部山區差異更大） 。 -
Hypertension is persistent elevation of blood pressure above the normal range
成年人的血壓若持續地高於正常范圍，就是患有高血壓。 -
Occasional elevation of blood pressure above the normal range should not be considered as hypertension, since this can be normal response of the body to stress
偶然的一兩次血壓升高，可能是基於多種因素，並不一定是高血壓，應請教醫生。
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