F - frusta 中文

frusta frustum 的復數。

frustrate
Shankou spillway project has many specific characteristics , for example , the gate frusta and weir body have equivalent thickness , the weir body is low and have corridor , the foundation of the weir body is “ high - low foot “ “ and the side frusta is also used as retain wall . in view of the characteristics , to better analyze the stress distribution on weir body , gate frusta , the joints between gate chamber and weir body , under the condition that the gate chamber is applied with asymmetrical loads and complicated constraints , three dimensional finite element method is applied in this paper 本文針對山口溢洪道閘墩與堰體底板厚度相當，堰體為低堰且設有廊道、堰體建基面“高低腳”及邊墩兼作擋土墻等具體特點，在閘室設計中采山口水利樞紐工程溢洪道閘室三維有限元整體應力計算分析用三維有限元整體應力計算方法分析閘室的受力狀態，分析閘室在荷載不對稱。
( 2 ) on the base of winkler model , compute the anti - forces of pipeline without frusta , considering the loess cohesion . compute the distortion and force of pipeline under different length of collapse . and get the stress field and the greatest mises stress and its location ( 2 )以winkler線形地基模型為基礎，確定無固定墩管道兩端的地基反力，并考慮黃土的內聚力作用，計算了不同長度黃土坍塌發生時管道的受力和變形，給出了管道上應力場的分布和最大mises應力部位。
The surrounding rock mass of the tgp shiplocks is jointed rock mass cut by well - developed discontinuous joints . the middle frusta and vertical border wall are the important components of the lock room construction . its deformability and stability will directly affect the construction function and using security 永久船閘區巖體屬于一種斷續節理切割的裂隙巖體，中隔墩和直立邊墻是閘室結構的重要組成部分，其變形大小和穩定程度將直接影響三峽航道的結構功能和運行安全。
Through the study and analysis conclude as follows : in human dna sequences , if the distinction of the number of the four bases is very small , they can distribute in a sphere whose radius equal to 1 / 4 ; if the distinction of them is comparative large , they can distribute between the sphere and the frustum - octahedron ; if one is 0 in them , they can distribute between the frustum - octahedron and regular - octahedron ; if the distinction of them is especial large , they may distribute in the outer of the regular - octahedron 通過研究和分析得到結論為：在人類dna序列中，如果四個堿基的數目相差很小時，它們可能分布在半徑為1 / 4的球內；如果相差比較大時，它們可能分布在這個球和截角八面體之間；如果在四個堿基數目中有一個為零時，那么它們有可能分布在截角八面體和正八面體之間；如果相差的特別大，甚至有可能落在那個正八面體的外部。
By finding the big penetrating crack in wangpu aqueduct upper frusta structure , the task group has adopted the integrated measures of chemical perfusion , carbonized fibre reinforcement and doping external surfaces to effectively reinforce the work , and improved the reinforcing techniques considering the characteristic of hydraulic engineering , made remarkable benefit in social , economic aspects 摘要針對王鋪渡槽上部墩柱結構出現的大開度貫穿性裂縫，經過全面分析和多方案綜合對比，采用裂縫化灌、碳纖維加固、外表面刷涂水性環保型乳膠漆外墻涂料作為防護的綜合措施對原工程進行有效的加固處理，并結合水利工程的自身特點改進了加固技術工藝，取得了顯著的經濟和社會效益。
The result show that the position of free surface is higher because of frusta of brake , especial obvious in the head of frusta of brake ; flux coefficient and pressure on dam are quite influenced by type of frusta and 3 a type frusta of brake relative to 2 type frusta of brake has bigger flux coefficient and smaller pressure on dam ; obvious influence of ability of discharge flow for different ratio of thickness of frusta and breadth of brake and pressure on dam reduces with increasing ration of thickness of frusta and breadth of brake , while bigger flux coefficient is obtained when tlb = 0 . 2 結果表明，閘墩河海大學博士論文的存在抬高了水面線的位置，其中在閘墩頭部尤其明顯;墩型對流量系數和壩面壓力影響較大， 3a型閘墩相對于2型閘墩具有更大的流量系數和更小的壩面壓力:不同的墩厚閘寬比t / b對泄流能力也將產生顯著的影響，隨著墩厚閘寬比的增加，壩面壓力降低，而當t / b二0 . 2時溢流壩具有更大的流量系數。
( 6 ) 3d integer model of spillway and frusta of brake are established and numerical computation of 3d viscous flow over spillway is completed . the influence of frusta of brake for design parameters such as shape of free surface , pressure on dam , flux coefficient is computed aim at type of frusta of brake and disposal on dam and compute result of different type of frusta and disposal model is compared 6 )通過建立溢流壩和閘墩的三維整體模型，完成了對三維過壩水流粘流場的數值計算，針對閘墩的型式及在壩面的布置計算了閘墩對水面線形狀、壩面壓力、流量系數等設計參數的影響，并將不同墩型與布置形式的計算結果進行比較。
Two numerating methods are used in traditional structural design of gate chamber . first , considering the gate frusta to be fastened on the weir body , it is calculated as plane stress problem independently . then applying the results ( moment and vertical force ) on the bottom of gate frusta as concentrating load on the weir body , and the weir body is viewed as a elastic foundation beam or plate and unilateral stress analysis was performed 傳統閘室結構計算有兩種計算方法，其一是將閘墩視為固端于堰體上，單獨進行閘墩平面受力計算，再將閘墩下部的計算結果(彎矩和垂直力)作為集中荷載作用于堰體上，堰體作為彈性地基梁或板進行片面應力計算。
Traditionally , loads of the arc gate are applied on the support or gate frusta as a set of concentrated load , but the effect range of such load on the frusta cannot be solved by material mechanics and structure mechanics . most of the load cases are fulfilled through optic - elastic test 通常弧門荷載作為一組集中荷載作用于牛腿或閘墩上，而這組荷載對閘墩受力的影響范圍材料力學方法和結構力學方法是不能解決的，受力狀況大部分是通過光彈試驗完成。
On the process of simulation the deformation after excavation at the middle frusta and the vertical slope at three gorges permanent shiplock , program the fortran procedure to perfect model creation and the capability of the pre - procedure and post - procedure in flac - 3d 在模擬三峽永久船閘中隔墩和直立邊墻開挖卸荷變形過程中，編制fortran程序，完善flac - 3d建模功能和增強其前后處理能力。
Due to the complexity of the load combinations of the gate chamber , it is difficult to perform such test on each load case . on the other hand , it is lack of the test data on the load case perpendicular to the current direction of the gate frusta till now 由于閘室的受力荷載組合較為復雜，對每種工況都做光彈試驗不容易做到，且有關垂直水流方向的閘墩受力狀況的試驗資料迄今尚很缺乏。
Pointing to this problem , a numerical simulation was firstly carried out , and then some measures was taken to prevent the equator from wrinkling by slightly changing the shape of the frustum shell , as a result , the bulged vessel became more round 針對這一問題，對其脹形過程進行了有限元數值模擬，并通過改變圓錐臺的初始形狀，來保證容器的圓度和避免赤道處的失穩起皺。
These algorithms also include the terrain texture generation algorithms and the frustum culling algorithms . the mathematic model of flight simulation was discussed in chapter four . in chapter five 這一章還介紹了地形紋理的生成算法，視圖平截頭體選取算法，這些算法使得計算機可以用來處理大規模的可視化工作。
Since we defined the frustum , we know the angle at which the sides of the frustum meet - this is the field of view we used to create the projection matrix in the first place 確定好錐截體，我們就知道錐截體頂角的大小?這是我們在第一個地方用來創建投影矩陣的視場。
Under internal pressure , equilateral frustum shell tends to wrinkle at the equator , and the circular degree of the obtained vessel is poor 摘要等邊雙圓錐臺殼體在內壓的作用下，赤道環焊縫處易產生失穩起皺，且脹形后所得容器圓度較差。
If the vertex is outside of the viewing frustum , it is stored in the destination vertex buffer in projection space coordinates 如果頂點在視錐平截體外部，則會以投影空間坐標的形式將其存儲在目標頂點緩沖區中。
The viewing frustum has an origin ( 0 , 0 ) at the center of the screen , while screen coordinates have an origin at the upper left of the screen 視圖錐截體的原點( 0 , 0 )在屏幕中心，而屏幕坐標的則在屏幕的左上角。
Screen coordinates are expressed in number of pixels , while coordinates in the frustum are normalized to a range of - 1 . 0 to 1 . 0 視圖錐截體的原點( 0 , 0 )在屏幕中心，而屏幕坐標的則在屏幕的左上角。
Since we have split the frustum into two halves , each triangle has an angle at the origin of view equal to fov / 2 因為將錐截體分成相等兩部分，每個三角形在原視圖中都有一個角等于fov / 2 。

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frusta

frusta frustum 的復數。

frustrate

Under internal pressure , equilateral frustum shell tends to wrinkle at the equator , and the circular degree of the obtained vessel is poor 摘要等邊雙圓錐臺殼體在內壓的作用下，赤道環焊縫處易產生失穩起皺，且脹形后所得容器圓度較差。

If the vertex is outside of the viewing frustum , it is stored in the destination vertex buffer in projection space coordinates 如果頂點在視錐平截體外部，則會以投影空間坐標的形式將其存儲在目標頂點緩沖區中。

The viewing frustum has an origin ( 0 , 0 ) at the center of the screen , while screen coordinates have an origin at the upper left of the screen 視圖錐截體的原點( 0 , 0 )在屏幕中心，而屏幕坐標的則在屏幕的左上角。

Screen coordinates are expressed in number of pixels , while coordinates in the frustum are normalized to a range of - 1 . 0 to 1 . 0 視圖錐截體的原點( 0 , 0 )在屏幕中心，而屏幕坐標的則在屏幕的左上角。

Since we have split the frustum into two halves , each triangle has an angle at the origin of view equal to fov / 2 因為將錐截體分成相等兩部分，每個三角形在原視圖中都有一個角等于fov / 2 。