面積向量 的英文怎麼說
中文拼音 [miànjīxiàngliáng]
面積向量
英文
area vector-
Shandong tengzhou huacheng metal co., ltd. enjoyed free mport anf export right awaeded by the state evonomic and trade co mmissiom, with 20years histoy of specolozed in metalwork. our favtory lovated in beauty spot of honghe everglade near weoshan lake in the south - eest of shandong rovince. we regisstered fund is 22 800 000rmb, and thr acreagr id 30000 squares, anthe workshop is 12000 squares, with 358 workerd ( not include the 16 filiale ) but 21 of them are advanced engineers, advances technology, completely testing equipment, good quantity of produces, and advance technology about surface producing, under the spirit of together effort with our clients, our company would make a new view on the surface making in many fields, such as : airplane, vessel, armory, car, container and so on
山東省滕州市華成金屬製品有限公司是一家具有中華人民共和國自營進出口資格的企業,已有20多年專業生產金屬磨料的歷史,公司位於中國魯西南地區的微山湖紅荷濕地風景區,公司注冊資本2280萬元人民幣,工廠面積30000平方米,車間面積12000平方米,員工358名(不包括下屬16個分廠)其中高級工程技術人員21名,技術力量雄厚,質量檢測手段完善,產品質量穩定,具有先進的表面處理技術.公司本著與客戶共同努力的觀點,在材料和技術應用上不斷創新,不斷提高,把飛機,造船,兵工,車輛,集裝箱等行業的表面處理,強化,推向一個嶄新的局面Photochemistry : study the interaction between small molecules and radiation. measure the absolute photoabsorption and photoionization crosss sections, identify photochemical products, and elucidate energy evolution. application : combustion chemistry and atmospheric chemistry
一)光化學:研究光與小分子的作用.測量絕對光吸收及光游離的截面積值,驗明光化學產物為何,以了解光化學反應的能量走向.應用:燃燒化學及大氣化學For the regular curves, we find two killing fields for the purpose of integrating the structural equations of the p - elastic curves and express the p - elastica by quadratures in a system of cylindrical coordinates. for the star - like affine curves, we solve the euler - lagrange equation by quadratures and reduced the higher order structure equation to a first order linear system by using killing field and the classification of linear lie algebra sl ( 2, r ), sl ( 3, r ) and sl ( 4, r ). we solve the centroaffine p - elastica completely by quadratures
對于正則曲線的情形,我們發現了兩個用於求解p -彈性曲線的結構方程的killing向量場並用積分將p -彈性曲線在一個柱面坐標系中表示出來,而對仿射星形曲線的情形,我們用積分方法解出了歐拉-拉格朗日方程,利用killing向量場及線性李代數s1 ( 2 , r ) 、 s1 ( 3 , r )和s1 ( 4 , r )的分類將高階結構方程降為一階線性方程,因此我們用積分完全解出了中心仿射p -彈性曲線。Determination method of the damage threshold stress and damage threshold strain is given, six kinds of damage variables ( which are across isotropy effectual elastic modulus damage variable, simple effectual elastic modulus damage variable, density damage variable, volume damage variable, volume density damage variable and area density damage variable ) are defined, evolution curves and evolution equations of harden yield damage are obtained
提出了損傷應力和應變門檻值的確定方法,並定義了六種損傷變量(即橫觀各向同性有效彈性模量損傷變量,簡單有效彈性模量損傷變量,密度損傷變量,體積損傷變量,體積密度損傷變量和面積密度損傷變量) ,在此基礎上得出了硬化屈服損傷過程中的損傷演化曲線和演化方程。There are many units in an urban drainage pumping station where the flow usually varies from season. the side - inlet sump is often designed to save the area of the pumping station
城市排水泵站常年運行的流量變化一般很大,配泵機組臺數較多,為節省佔地面積,常採用布置較緊湊的側向進水方式。The result of md simulation means that : ( 1 ) the microstructure in the amorphous carbon has no obvious change, the slippage which is parallel to the fiber axes in the graphite slices of the pyc interphase was found ; ( 2 ) bulk moduli of every part of interphase diminished, young ' s moduli in all three direction of amorphous carbon diminished, young ' s moduli of the graphite slices in the direction of parallel to the fiber radial decreased, and ones in the direction of parallel to the fiber axes increased
分子動力學模擬結果表明, ( 1 )界面相內部無定形碳部分微結構無明顯變化,石墨片層部分沿纖維軸向滑移; ( 2 )界面相模量發生變化,界面相區域各部分的體積彈性模量降低,無定形碳部分及石墨片層部分垂直於纖維軸向的楊氏模量降低,平行於纖維軸向的楊氏模量升高。The formulas of lateral area, surface area, and volume of pyramid can be given by vector method
立體幾何中棱錐的側面積、全面積、體積公式都可用向量方法給出。During the adjustment of structure, the thesis dicusses the change the forestry, stock breeding, and aquaculture were supplanted by planting, the improvenent that foodstaff pushed aside the economec products in panting structure, the movenent of forestry industrial sructure through increasing forestation acreage and developing mixed farming, the inprovement of breed structure and increasement the quantityof the stock breeding in the structure adjustment, the advancement of proportion of breed aquatics and catching, developing the breeding and ocean aquaculture, promoting the storege and process in the adjustment of aquaculture
在林業內部產業結構調整過程中,主要是提高造林育林面積,發展林業多種經營。畜牧業在結構調整中主要是改善畜種結構,提高畜產品產量。水產業主要是調整養殖與捕撈比例關系,積極以展海淡水養殖業,拓展漁業生產的空間,向外海漁業發展,推動水產業儲藏及加工業的發展。Key control, we should pay attention to in order to accumulate strength on the slopes below are energy alerts
方向鍵控制,要注意積蓄力量才能上高坡,下面有能量條提示。In the first, an academic concept of the slope spectrum was firstly put forward. the slope spectrum is defined as a statistic graph or a mathematical model with its x - axis denoting the numerical value of the slope factors ( e. g. gradient, aspect or curvature etc. ) and its y - axis the corresponding area on the ground in a specific statistic area
首先,本文提出了地面坡譜的理論概念:地面坡譜是指在一個特定的統計區域內,以某項坡面因子(坡度、坡向或曲率等)的大小為自變量,其對應的地面面積為因變量,構成的統計圖表或模型。At present, comprehensive exploitation and construction of kela no. 2 gas field has been initiated, and tarim oil field will continue to expand gas - containing area and gas reserves of kuche - tabei area of tarim basin, increase total verified geological reserves to 1 trillion m3, and finally form an annual production capacity of 30 billion m3 to guarantee stable gas supply for 30 years starting from the next year for the project to transmit gas from china ' s west to east
目前,克拉二號氣田已投入全面開發建設,塔里木油田還將繼續擴大庫車塔北地區的含氣面積和儲量規模,使總探明地質儲量達到1萬億立方米,最終形成300億立方米的年產能力,確保從明年起向西氣東輸工程穩定供氣30年。Based on the analysis on the extension of main rice varieties ( > 6. 7 thousand hectares ) from 1986 to 2003, the extension trend of rice varieties in china indicated that the number of varieties for extending increased significantly, the average extension acreage of rice varieties decreased significantly, the varieties with large extension acreage ( > 666. 7 thousand hectares ) became less and less, the percentage with cross - province extension and renewal speed of dominant rice varieties ( > 66. 7 thousand hectares ) kept basically steady
摘要對1986 - 2003年全國水稻主要推廣品種的分析表明, 「七五」以來中國水稻品種推廣趨向表現為:品種數量明顯增加,單個品種年均推廣面積顯著下降,大面積推廣品種逐漸減少,主栽品種跨省推廣比例及更新速度基本穩定。To meander channel, because the channel continuously moved, form duplicate fluvial sand bodies largely, and there are many area of non sandbodies or in fluvial sandbodies, there are some abandoned channel, all make the continuous of sandbodies poor upper the meander channel sandbodies, so remained oil is mainly distributed in sandbodies in fluvial channel, abandoned channel and non sandbodies area nearby
對曲流河砂體,由於平面上曲流河反復遷移和改造,以側蝕和側積方式形成了面積廣闊的復合曲流河砂體,內部發育有許多尖滅區及河間砂體,邊部及內還存在一定數量的廢棄河道,從而使曲流河上半部側向連通性變差,這類砂體中剩餘油主要分佈於河間砂、廢棄河道部位及尖滅區附近。Multi - beam swath sounder is a seafloor mapping device with high efficiency, high accuracy and fine resolution. it is very fitted to sweep mapping for wide area, miniaturization of which is currently the main goal of this area. in this paper, on the base of h / hcs - 017 swath sounder, we researched on the design of swath sounder ' s miniaturization
多波束條帶測深儀是一種高測量效率、高測量精度、高解析度的海底地形測量設備,特別適合大面積的掃海測量作業,系統的小型化研究是當前該領域的主要攻克方向。At the same time, liquid crystal science harvests satisfyingly, its research field has extended to physics, chemistry, electronics, biology, etc. surface orientation of liquid crystal molecule ( lcm ) is a key technique in the application of lcd, the effect of orientation plays an important role in the basic performances, such as uniformity, visual angle, aberration, response, threshold of voltage and so forth
液晶自1976年在世界上首次應用於計算器的顯示屏以來,就以其輕量、薄型、能耗低、顯示面積大等優勢在顯示應用方面得到迅猛發展,而同時,液晶科學也得到了全面發展,研究領域遍及物理、化學、電子學、生物學等各個學科。液晶分子取向控制技術是液晶板顯示應用中的一個關鍵技術,取向程度的好壞對液晶顯示器的均勻性、視角、色差、響應速度、閾值電壓等基本性能都有重要影響。The comparison between the experimental data with numerical simulation show that the model have a higher precision in the lateral scouring and sedimentation deformation, time interval quantity of deposition, and output sediment concentration process during sand peak at various cross section and is applied fairly good to practical engineering
青銅峽水庫的實測資料對模型驗證結果表明:模型在水庫不同斷面橫向沖淤變形、時段淤積量、沙峰期出庫含沙量過程都具有較高的精度,能較好地運用於工程實際。In this passage, author has studied the quota of irrigation that can make water used economically for various plants, if the irrigation quota can be lowered from 6795 m3 / a to 4500 m3 / a during the processes of irrigation, there will be a saving water amount of 3. 386million m3 / a, in shiyang river basin. there is no doubt that we can open the second source of river water that can provide the possibility of transporting 300 million m3 / a water amount to lower reaches of the river. in this paper, there are some analysis and prospects for the future situation of supply and demand of water resources in 2010
民勤水資源減少的主要原因是人為因素,如全流域人口增加、中上游耕地面積擴大,用水量增加,造成灌區重心上移;沒有樹立可持續發展觀,在經濟中搞短期行為;對石羊河流入民勤水量不斷減少、地表水、地下水轉化活躍、生態用水問題突出等方面進行了分析論證;對目前開發利用現狀、供需狀況進行了較為詳細的計算和評價;通過對各種農作物節水灌溉定額的研究,若從現狀灌溉定額6795m ~ 3 ha降低到4500m ~ 3 ha實施灌溉,石羊河流域將節水3 . 3867億m ~ 3 ,這無疑于開辟了第二水源,提供了向下游調水3億m ~ 3的可能性。The quantity of mass diffusing through and perpendicular to a unit cross - sectional area of material per unit time
單位時間內通過一個垂直與擴散方向上單位橫截面積內的通過物質量。Using “ logical effort ” method to analyze the circuit ’ s critical path, and choose the optimized size of transistors in theory by this method. then, using sta technique simulates and analyzes the circuit to optimize transistors size further, and the circuit optimization arithmetic based on sta is gained. results proved that the optimization strategy of combining theory and practice have better effect
結果證明,這種理論與實際結合的優化策略具有較好的效果;三、典型條件下,所實現版圖關鍵路徑延時1 . 38ns ,平均功耗45 . 3mw ,版圖面積0 . 05112mm2 ,達到了較小的延時、功耗和面積;四、針對所設計的算術邏輯部件,研究了一種獨特的內建自測試方法,只需較少的測試向量就可實現該部件100 %的故障覆蓋率,具有很高的效率和較低的代價。Under this flow, the convex initial curve will preserve its perimeter, enlarge the enclosed area and make its curvature to be positive definitely. and as the time lasts, it will become more and more circular, and finally, as the time goes to infinity, the curve will converge to a circle in the hausdorff metric
本文證明在這種新的曲線流之下,閉凸曲線周長保持不變、所圍區域的面積不斷增大而曲率保持恆正(從而保持凸性) ,並且,隨著時間的推移曲線變得越來越圓,最終當時間t趨向于無窮大時,曲線在hausdorff度量意義下收斂到一個圓周。分享友人