octahedron是什麼意思 octahedron的用法 octahedron怎麼讀
octahedron
英 [,ɒktə'hiːdrən; -'hed-]美 [,ɑktə'hidrən]
n. 八面體
英語詞源
octahedron (n.)
1560s, from Greek oktahedron
, neuter of oktahedros "eight-sided," from okta- "eight" (see octa-) + hedra "seat" (see sedentary). Related: Octahedral.權威例句
1. The cycle sum of the rotation group of the octahedron was calculated.
正八面體的旋轉羣的循環和已算出.
2. Making oars. First step - from square to octahedron.
製作漿. 第一步從方形到八面形.
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3. An octahedral tessellation approximates a spherewith an octahedron whose vertices are all on the unIt'sphere.
八面體三角化把球面近似於一個頂點在單位球上的八面體.
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4. The octahedron steel ingot and V - anvil forging bar can effectively prevent cracks in crystal boundary.
因此採用八棱形鋼錠鍛造齒輪軸,並採取上下V形砧拔長圓坯的方式可以有效地防止軸心晶間裂紋的出現.
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5. The synthesis of regular octahedron cobalt oxide battery material in supercritical carbon dioxide system was studied.
研究了正八面體氧化鈷顆粒在超臨界二氧化碳體系中的合成過程.
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