溫度的變化 的英文怎麼說
中文拼音 [wēndùdebiànhuà]
溫度的變化
英文
variations in temperature-
The variation of the return rate constant k with different absolute temperature t deviates arrhenius empiric equation
反應速率常數隨絕對溫度的變化基本上符合阿累尼烏斯定理。Environmental-temperature variations contribute to uneven air pressures due to density variations of the air in the bellows.
環境溫度的變化將引起波紋管內空氣密度的變化,造成氣體壓力不穩定。Boiling point elevations are negligible as well as the variation of the heat capacities and latent heats with temperature.
沸點升高以及熱容和潛熱隨溫度的變化忽略不計。The conclusions are reported as following : the structure change of triuranium octaoxide ( u3o8 ) was studied by xrd at ambient atmosphere at temperature form 25 to 850. there are two kind of phases of u3o8 in the temperature range studied, and the transformation temperature is about 300. the low temperature phase is orthorhombic with space group amm2, and it change to another phase with better symmetry around 300
主要的研究結果如下:對u _ 3o _ 8的相變和結構隨溫度的變化進行的分析研究結果顯示:在300附近u _ 3o _ 8發生了相變,由底心正交結構(空間群為amm2 )的低溫相轉變為簡單六方結構(空間群為p - 62m )的高溫相。Using the rock resistivity meter with simulating in - situ conditions, the relations between rock resistivity and temperature were observed from 6 sandstone samples with different porosity and permeability, while samples were brine water - saturated and subjected to certain confining pressure. it is found that the resistivities of water - saturated rock samples decrease in the form of power expression with the temperature increase. although the resistivity of brine water decreases with temperature in the same rule, it can not entirely account for the decreasing of rock resistivity. the cementation factor
利用模擬地層條件巖芯電阻率測量儀,對6塊孔隙度滲透率各不相同的砂巖巖芯,在一定圍壓條件下,巖芯完全飽和鹽水時,考察了巖芯電阻率隨溫度的變化。發現飽和鹽水巖芯的電阻率隨溫度升高,以冪函數形式下降。雖然巖芯中飽和鹽水的電阻率同樣隨溫度以冪函數形式下降,但巖芯電阻率的下降不能完全用巖芯飽和鹽水的下降表徵。The results showed that temperature of freezing storage had influences on the zein films, which led to the changes of mechanical properties, equilibrium moisture content ( emc ), water vapor permeability ( wvp )
結果表明:蛋白膜的機械特性、平衡水分含量和水蒸氣透過率隨凍藏溫度的變化而發生變化。In the program, the effect of lamination placement, construction interval, elastic modulus change, thermal insulation change, surrounding temperature change, concrete creep and autogenous volume change on thermal stress are considered. and such temperature control measurement as water pipe cooling, heat preservation of the dam surface, the pouring temperature control, the overflow across the dam top during flood season can also be simulated by numerical method
該程序在編制過程中考慮了混凝土分層澆築、施工間歇、彈模變化、絕熱溫升過程、環境溫度的變化、混凝土徐變、自生體積變形等因素對壩體溫度場及溫度應力場的影響,同時也考慮了水管冷卻、壩體表面保溫、控制澆築溫度、施工汛期壩頂面過水等各種溫控措施的數值模擬。In this article, according to heat conduction theory, elastic creep theory and finite element theory, the temperature field and creep stress field in the arch dam during construction and operation are simulated and analyzed by means of three dimensional finite element relocating mesh method, and the distribution law of the temperature field and creep stress field in the arch dam during construction and operation are systematically studied, and according to the construction process of concrete arch dam, the effect of lamination placement, construction interval, elastic modulus change, thermal insulation change, surrounding temperature change, concrete creep and autogenous volume change on thermal stress in the arch dam are also considered
論文根據熱傳導理論、彈性徐變理論及有限元理論,用三維有限元浮動網格法對拱壩施工期和運行期溫度場、徐變應力場進行了全過程模擬分析,較為系統的研究了混凝土拱壩施工期和運行期溫度場、徐變應力場的分佈規律,在分析中按照混凝土拱壩施工過程,考慮了混凝土分層澆築、施工間隙時間、彈模變化、絕熱溫升過程、環境溫度的變化、混凝土徐變、自生體積變形等因素對壩體溫度應力的影響。A model of the interface state density distribution near by valence band is presented, and the dependence of the threshold voltage on temperature, the c - v characteristics and the subthreshold characteristics are predicted exactly with this model ; the effects of s / d series resistance on the output characteristics, transfer characteristics and effective mobility of sic pmosfets are analyzed. thirdly, the output characteristics and the drain breakdown characteristics are modeled with the procedure medici. the output characteristics in the room temperature and 300 ? are simulated, and the effects of gate voltage. contact resistance, interface state and other factors on sic pmos drain breakdown characteristics are analyzed
提出了一個價帶附近的界面態分佈模型,用該模型較好地描述了sicpmos器件閾值電壓隨溫度的變化關系、 c - v特性曲線以及亞閾特性曲線;分析了源漏寄生電阻對sicpmos器件輸出特性、轉移特性以及有效遷移率的影響;論文中用模擬軟體medici模擬了sicpmos器件的輸出特性和漏擊穿特性,分別模擬了室溫下和300時sicpmos器件的輸出特性,分析了柵電壓、接觸電阻、界面態以及其他因素對sicpmos擊穿特性的影響。It is very important to analysis, estimate, optimize and integrate these data by computer technology, for example, in agriculture, if we can find the relationship between temperature variety, air pressure variety, insect pest variety, and emblement output variety, so, we can find the way to enlarge the output
如在農業生產中,溫度的變化、氣壓的變化、蟲害的變化、糧食產量的變化組成了多個數據流的時間序列,如果能夠發現這些數據流之間的關系,用於指導實際生產,對于提高產量、防治災害,有重要的現實意義。The chosen controlled parameter must be single function of extraventricular temperature because extraventricular temperature affect immediately radiator ' s emitting heat, heat net supplying heat and user ' s heat load. but the sometime chosen controlled parameters all are ' t extraventricular temperature ' s single function
室外溫度的變化直接影響用戶熱負荷、散熱器散熱量、熱網供熱量的大小,所以選擇的被控參數應與室外溫度有單值函數關系,而以往所選的被控參數與室外溫度之間都不是單值函數關系。There is no simple general law relating the change of temperature of a substance to the heat energy add to it.
加進物質的熱量同物質溫度的變化之間的關系,還沒有一條簡潔而普通的定律。The wastage morphology and reasons of gear hob used in production are analyzed, the influence of the varying hobbing torque and temperature on wastage of hob is discussed in hobbing process
摘要對生產中使用的齒輪滾刀磨損和破損形貌進行了分析,探討了滾刀磨損和破損的原因及滾齒過程中滾削力和滾削溫度的變化對滾刀磨損和破損的影響。Since all materials are subjected to expansion and contraction, " expansion joints " must be provided in any large structure to adapt to the change of temperature with the season, or even with day and night, otherwise the force of expansion would cause the structure to bend or break
由於所有的材料都要經受膨脹和收縮,在任何大的建築中都需要提供「伸縮接合面」 ,以適應隨著季節甚至晝夜的改變而產生溫度的變化,否則膨脹力就會引起建築彎曲或斷裂。In this paper, the target radiate characteristics and waveband selection of the infrared system reviewed briefly ; the suppression of the stray radiation in the infrared sub - system is discussed ; the material selection, the support structure and optimization of the primary mirror in the infrared sub - system of the theodolite, every factor which will affect the surface figure of the mirror is discussed in detail and get the result that in the circumstance of shooting range, the primary factor which affects the surface figure of the mirror in the infrared sub - system is temperature changing, this ca n be resolved by using material of low expansion coefficient and using same material in the mirror and the mirror seat
本文將對紅外系統的目標輻射特徵分析和波段選擇進行簡要回顧,討論紅外系統中雜散輻射的抑制,並詳盡分析經緯儀紅外光學系統設計中所涉及到的反射鏡的材料、支撐、結構和優化設計等問題,認真討論和分析影響主鏡的面形精度的各種可能因素。並指出:在靶場環境下影響經緯儀紅外分系統主鏡面形精度的主要原因是溫度的變化,這種情況可通過選擇低線膨脹系數的材料並且使鏡座和反射鏡採用相同的材料予以解決。Thus, during a normal light-up there is a blade temperature charge of about 30 degrees/sec.
於是,在正常點火時,葉片溫度的變化率約為30度秒。Then after analyzing the heat conduction in laser diode array, we simply simulate the transient thermal behavior of high power laser diode array and build a two dimensional static model of temperature distribution of it by fem ( finite element method )
接著分析激光器陣列中熱的傳導,簡單的模擬工作工程中瞬態溫度的變化。然後通過有限元分析法,建立二維溫態分佈,得到穩態工作時,大功率激光器陣列中晶元和載體的溫度的空間分佈。The sculpture is constructed with a double - shell system of copper and zinc. these two materials have a great degree of difference in their thermal conductivity. the materials are structurally bonded together to allow for their varying degrees of expansion
雕塑採用了銅和鋅雙層板作面層,利用兩種金屬不同的導熱系數,隨時表現出冷縮熱脹的效果,創造出一個抽象和簡潔的動感雕塑,讓人們感覺出周圍溫度的變化和陽光的美。Recently, train is running faster and faster, and considering the stability and security, seamless welded rails ( swr ) are used as the train orbits gradually. the temperature of the rails will vary with weather. so that the rails may release the energy due to the metal characteristic of expanding or contracting with temperature, there is some badly distortion in the swr, worsly occurring accidents on expanding orbits. the portrait thermal stress ( pts ) of the swr should be monitored in some parts regularly, as to avoid such accident
近年來,隨著火車的提速造成的穩定和安全問題,軌道逐步轉為採用無縫焊接鋼軌,隨著鋼軌溫度的變化,無縫鋼軌可能會因為熱脹或冷縮的金屬特性並且在扣件阻力小而且路基較差的路段釋放能量,可能會發生鋼軌嚴重變形,更甚者會發生脹軌跑道等嚴重鐵道事故,為了避免發生如此事故,有必要定期對鋼軌的溫度應力進行檢測。This may occur in the wild, less controlled environments, for example, through temperature changes, which we can mimic, by placing the animal on a cool floor for a few seconds each day
這種情況可能會出現在野生情況下,缺少控制的環境中,例如,溫度的變化,我們也能模仿這點,每天抽幾秒鐘將幼犬放在涼涼的地板上。分享友人