crown point 中文意思是什麼
crown point
解釋
克朗波因特-
Detail of young leaves and growing point ; many leaves reduced to bare midrib or narrow green corrugated residue of lamina ; youngest leaves and growing point brown and dead ; large green stipular lamina around crown
缺錳甘藍的「鞭尾癥：關鍵在於嫩葉和生長點，許多葉片露出中脈或縮小成綠色波狀的薄層殘留，心葉和生長點變褐並死亡，頂部周圍有大量綠色長有托葉的葉片。 -
The analyzable conclusions of the regression model between crown diameter and age show that the utility of unit step function model in the crown growth process with the changing point is better than the usual regression methods, and the unit step function model can solve discontinuance on the changing point
對樹冠與林齡的回歸分析結果表明：階躍函數模型在具有變點的桉樹林分樹冠生長過程中的應用效果優於一般回歸擬合模型，可較好地解決分段擬合模型在變點上的不連續問題。 -
All the results can be utilized by engineers, during the designing and construction. the main conclusions are listed as follows : ( 1 ) based on the shortest line between weak interbed and limit of excavation and the location of point of intersection between limit of excavation, classification of weak interbed distribution is set up, and the distance of distribution is defined ; ( 2 ) according to the strength and deformation equivalent principle, influence zone of weak interbed is introduced, and a new method to simulating the weak interbed with thickness is built ; ( 3 ) some quantificational results on influence of weak interbed respectively at crown, right shoulder and right wall are summarized ; ( 4 ) some quantificational results on influence of weak interbed with the distance between weak interbed and limit of excavation 0. 2d, 0. 5d, l. od are gained ; ( 5 ) some quantificational results on influence of weak interbed in the rock mass with confining coefficient 0. 38, 1. 0, 1. 5, 2. 0, 3. 0 are summed up ; ( 6 ) some quantificational results are summarized on influence of the underground surrounding rock mass stability with weak interbed, in the representational surrounding rock mass graded ii, iii, iv ; ( 7 ) according to the studying results some advices are suggested on designing of underground engineering
主要結論如下： （ 1 ）以軟弱夾層到開挖輪廓線最短距離和最短距離線與開挖輪廓線的交點位置為指標對軟弱夾層的分佈部進行了分類，並確定了軟弱夾層分佈距離； （ 2 ）根據強度等效和變形等效的原則，引入了軟弱夾層影響帶的概念，建立了模擬軟弱夾層厚度的一種新方法； （ 3 ）總結出了軟弱夾層分佈在拱頂、右拱肩、右邊墻時對地下洞室穩定性影響的量化指標； （ 4 ）分析出了軟弱夾層距開挖輪廓線0 . 2d 、 0 . 5d 、 1 . 0d三種情況對地下洞室穩定性影響的量化指標； （ 5 ）總結出了在不同的側壓力系數（ 0 . 38 、 1 . 0 、 1 . 5 、 2 . 0 、 3 . 0 ）地應力場中軟弱夾層對穩定性影響的量化指標； （ 6 ）得出了在、 、代表性圍巖中軟弱夾層對穩定性影響量化結果； （ 7 ）根據數值試驗成果提出了在有軟弱夾層圍巖中地下洞室設計原則的幾點新內容。 -
Front crown to crossing point
前錐齒冠至交錯點 -
According to the crown growth characteristics in industrial eucalyptus stand of short rotation, the unit step function model was put forward for the process with changing point of short rotation eucalyptus clones u6 based on the survey practical stands
摘要針對短輪伐期桉樹人工林林分冠幅生長的特點，在現實林分調查的基礎上，模擬提出了適合有變點的短輪伐期桉樹u6無性系林分冠幅生長階躍函數模型。 -
Crown to crossing point
輪冠至相錯點距離 -
Abstract : in order to solve the double parameters enveloped in the geartooth flank generating, the complicated double parameter envelope is simplified to the generating process between work - piece and imaginary crown generating gear by means of mathematical transformation. the equation of the imaginary crown generating surface and the partial derivatives are deduced, so the differential geometric parameters of the generating surface can be obtained. by analyzing the generating motion between the imaginary crown generating gear and the work - piece, all the first to third order geometric parameters of the generated tooth flank at any given point can be calculated
文摘:為了解決直接求解展成法加工中存在的復雜雙參數包絡問題時的困難，提出通過數學變換，將此包絡問題轉化為假想平面產形輪與工件之間的展成問題來進行研究.推導了假想產形面的方程和各階偏導矢，於是可獲得產形面的微分幾何參數.通過分析假想平面產形輪與工件之間的展成運動，即可得到被展成齒面上任意指定點的全部一至三階微分幾何參數 -
Bottling industry. glass bottles. glass finishes. 26 to 43 mm crown cord. construction of the external profile and of the " p " hooking point. geometry and dimensions
制瓶工業.玻璃瓶.玻璃瓶口. 26至43mm的冠狀軟木塞.外形和" p "鉤點的結構.幾何形狀和尺寸
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