查詢詞典 pterostigma
- 與 pterostigma 相關(guān)的網(wǎng)絡(luò)例句 [注：此內(nèi)容來源于網(wǎng)絡(luò)，僅供參考]
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Firstly, the high resolution pictures of dragonfly wings from sample tests were studied thoroughly, and the unique feature of the reticulate vein distribution and the variation of the vein sizes and the grid shapes in different zones were figured out;then several computational models based on a dragonfly wing were established by using ANSYS, and beam 189 and shell 93 elements were used respectively in modeling of the veins and the membrane so as to ensure the compatibility between the veins and the membrane at a deformed state;these models subject to uniform loading cases were analyzed respectively so as to explore the unique performances of the wing structure, furthermore, through eigenvalue spectrum analyses of these models, the special role of the pterostigma in eliminating or suppressing the wing quivering effect was also evaluated.
首先亚洲一区二区三区动图，對實驗中獲取的高清晰度的蜻蜓翅膀數(shù)碼圖片進(jìn)行了細(xì)致地分析，找出了翅膀網(wǎng)狀翅脈結(jié)構(gòu)中翅脈的分布規(guī)律與尺寸變化免费一片、網(wǎng)格形狀的差異及不同形狀網(wǎng)格的分布等獨特的結(jié)構(gòu)特征又粗又长又硬又爽免费视频；再利用ANSYS建立蜻蜒翅膀網(wǎng)狀翅脈結(jié)構(gòu)模型，采用三節(jié)點等參數(shù)梁元beam189模擬翅脈和八節(jié)點等參數(shù)曲殼單元shell93模擬翅膜xingaiav11.com，以滿足翅脈和翅膜間的變形協(xié)調(diào)性要求色色色色色色色色网站；通過非線性數(shù)值分析，探索了蜻蜓翅膀網(wǎng)狀翅脈結(jié)構(gòu)在均布荷載作用下所具有的獨特的結(jié)構(gòu)性能无码乱伦一区二区；通過模態(tài)分析777国产偷窥盗摄精品品在线，揭示了翅膀前緣靠近翼尖附近的翅痣在翅膀消震減振中所發(fā)揮的作用。
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Dragonfly wing;reticulate vein;pterostigma;bionic structure;new-style structural system
論文導(dǎo)師童根樹亚洲欧美日韩久久久久禁片，論文學(xué)位碩士色屁屁影院www免费看国产馆，論文專業(yè)結(jié)構(gòu)工程
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However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.
然而，正如其名字所指出的那樣熟女乱伦91视频一区，CD盤不能寫男女黄色网站免费，也不能用任何方式改變其內(nèi)容。
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Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.
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A single payment file can be uploaded from an ERP system to effect all pan-China RMB payments and overseas payments in all currencies.
付款指令文件可從您的 ERP 系統(tǒng)上傳到我們的電子銀行系統(tǒng)來只是國內(nèi)及對海外各種幣種付款H纯肉无遮挡3d动漫在线。