柱的母線 的英文怎麼說
中文拼音 [zhùdemǔxiàn]
柱的母線
英文
element of a cylinder-
We need to consider the deformation of only one strip parallel to generatrix of the cylinder.
我們只需要考慮一個平行於圓柱母線的窄條的變形。4. many line extraction methods are summarized, and a new algorithm for extracting the generatrix edges is presented
4 .總結了已有的直線提取方法，在此基礎上提出了一種新的柱椎體邊緣母線的提取演算法。In this paper, the nacre of hyriopsis cumingii ( lea ) which is one of the main freshwater pearl - forming mollusk in china is studied emphatically, as compared with the nacre of three species of saltwater pearl - forming mollusks, pinctada martensii ( dunker ), pinctada maxima ( jameson, and peteria penguin ( roding ). the basic characteristics of nacreous and prismatic layers are understood by powder x - ray diffraction analysis, trace elements analysis, amino acid composition of protein and differential thermal analysis
本文以我國主要育珠蚌淡水三角帆蚌貝殼珍珠層為重點研究對象，以三種海水育珠貝馬氏珍珠貝、企鵝珍珠貝及大珠母貝貝殼珍珠層為對比研究對象，首先通過粉末x -射線衍射、微量元素分析、蛋白質氨基酸分析及差熱分析對珍珠層及其與之密切共生的稜柱層的基本特徵進行了初步研究。
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