diffusion atmosphere 中文意思是什麼

diffusion atmosphere 解釋
擴散大氣
  • diffusion : n. 1. 散布，發散。2. 傳播，普及。3. 冗長。4. 【化學】滲濾。5. 【物理學】擴散，漫射。
  • atmosphere : n. 1. 大氣；大氣層，氣圈；空氣。2. 四圍情況，環境，氣氛。3. （藝術品的）基調，風格。4. 氣壓。5. 【化學】霧。
  1. For same mineral, desorption of 125i " on it was weaker than 125io3 ", and sorption of 125i i25io3 " on galenite is irreversible. apparent diffusion coefficient da of 125i " in the mixed material were determined by the pass - through diffusion way, da values under atmosphere was given : da = 7. 29x10 - 12m2 ? s - 1

    大氣條件下，隨體系固液比的減小，固相的量相對在下降， 125i -在礦物材料上的kd值減小；隨材料粒度的減小，材料的比表面積增加， 125i -在礦物材料上的kd值有所增加。
  2. The software development on hazardous consequence analysis system of toxicant leak gas diffusion into atmosphere

    有毒物質泄漏擴散危害後果分析系統軟體的研製
  3. The diffusion model and numerical simulation model for chaff clouds are modeled on the assumption that the speed of air where chaff locates is a winner random process and the mass of chaff is zero so it can trace the atmosphere speed very well

    摘要假定箔條所在位置處大氣運動速度是一個維納隨機過程，同時在忽略箔條的質量時箔條的運動完全反應當地大氣的運動，在此基礎上建立箔條雲團的擴散模型及數值模擬模型。
  4. A transfer model is established, which can be used to study the interaction between the land surface physical processes of inhomogeneous region and the structure of atmosphere boundary - layer over urban and rural terrains. the model has simulated surface heat flux, surface temperature, temperature profiles, height of mixture layer and so on. and the differences between urban area, suburban area and rural area have been compared. this model mainly depends on the parameters below : surface albedo, surface roughness coefficient, moisture available coefficient of soil, thermal capacity and thermal diffusion coefficient of errain, cloudage. the result shows that this model can simulate the structure and eigenvalues of atmosphere boundary layer and their changes in a day. parameters used in this model aim at beijing city, and the time is at the beginning of september. to other cities, or other time, the parameters should be adjusted accordingly. in addition, being adjusted, the model can also be used for other homogeneous and inhomogeneous terrains

    模式主要依賴于以下參數和物理量：地面反照率下墊面粗糙度土壤的可含水量下墊面的熱容量和熱擴散系數雲量等參數。結果表明，本模式能合理地模擬不同地表熱量平衡地表氣溫混合層高度湍流交換系數湍流動能位溫廓線等，以及它們的日變化。該模式所取參數主要針對北京市，時間為九月初，對于其他城市，參數應作相應的調整。
  5. Having been treated at variable temperature in atmosphere, we can get the conclusions : ( 1 ) treated at 300, there are little diffusion coefficients between cu and cr ; ( 2 ) treated over 500, cr and cu diffuse into each other evidently. cu film oxidizes and there are cracks in cr film

    得到以下結論：在300oc處理溫度下， cr 、 cu之間的相互擴散小， cr膜緻密， cu膜沒有顯著的氧化，能夠滿足薄膜導帶的要求；但是升高溫度至500oc以上， cr 、 cu膜之間的擴散加劇， cr膜表面出現裂紋， cu膜被氧化。
  6. In this paper, the performance of adsorbing and retarding 125i ( substituted for 129i ) for mixed materials as buffer, backfill material was investigated, the distribution coefficient kds by batch sorption experiments were determined for four kinds of minerals and one kind of bentonite under atmosphere, iodine sorption and desorption on several mianerals were studied under low oxygen ambience at first time in the domestic, and apparent diffusion coefficient da of 125i ~ was determined for mixed minerals under atmosphere

    在大氣條件下用批式實驗法研究了放射性125i - 、 125io3 - （用i - 125代替i - 129 ）在黃銅礦、方鉛礦、黃鐵礦、辰砂上的吸附和解吸行為，並且在國內首次研究了低氧條件下碘在幾種礦物上的吸附和解吸行為；在大氣條件下，用恆定源擴散法研究了125i -在方鉛礦與膨潤土組成的混合材料中的擴散行為。
  7. By using diffusion welding method ( under certain welding parameters such as temperature, pressure, time and atmosphere, etc ) and employing rational structural control technique, a kind of 93w - ofc - tc4 - a1 - mb2 system flier - plate with good parallelism, planeness and high densification was prepared, which met the needs of initial design and the basic requirement of flier - plates

    利用平面擴散焊接法（控制一定的溫度、壓力、時間、氣氛等條件） ，同時採取合理的結構控制方法，成功實現了93w - ofc - tc _ 4 - al - mb _ 2的整體連接，得到了平面性好、平行精度高、整體緻密的波阻抗梯度飛片，滿足了設計結果和梯度飛片的基本結構要求。
  8. For air pollution evaluation and control it is an important task to research and describe the mechanism of chemical transformation, the mode of physical diffusion, the process of evolution, and the behavior of chemical pollutants in atmosphere

    研究和描述化學污染物在大氣環境中的化學轉化機制、物理遷移模式、演化過程及其污染行為是大氣環境評價及污染控制的重要工作。
  9. The diffusion of radio - nuclides in atmosphere was studied on the basis of gaussian model

    摘要在高斯煙羽模型的基礎上，對核事故中放射性雲團在大氣中的擴散規律進行了研究。
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