evaporation number 中文意思是什麼

evaporation number 解釋
汽化值
  • evaporation : n. 1. 蒸發(作用),發散,升華沉澱作用。2. 脫水(法)。3. 蒸氣。4. (電子的)發射。5. 蒸發量。6. 消散。
  • number : n 1 數;數字;〈pl 〉算術。2 (汽車等的)號碼;第…,第…卷,第…期〈通常略作 No (復數 Nos ),用於...
  1. Based on the field investigations and laboratory examinations, a study of the population of the epiphytic dolichomitriopsis diversformis ( mitt. ) nog. in fanjing mountain reveals that its habitats are different among different host trees, but that there lies the common habitat characteristics of not more than 2m height from the bottoms of host trees trunks, less light, high relative humidity, slow wind speed, slow evaporation speed and long time of remaining humid in middle - lower tree bark ; that it is one dioecious moss species, the morphology is remarkably different between its perichaetium and perigonium, the number of its perichaetia is much more than that of its perigonia, its perigonium is difficult to find out, its sporophyte is upright, its seta is long and thin, its capsule is regular long oval and its calyptra is cucullate

    摘要通過野外調查和室內觀測對貴州省梵凈山樹附生尖葉擬船葉蘚種群的研究表明,其生境因其所附生的樹種不同而有所不同,但具有共同特點:附生在樹干下部距地面2m高的范圍之內,光照弱、濕度大、風速小、蒸發量小、中下部樹皮保持濕潤的持續時間長;其為雌雄異株蘚種,雌、雄器苞形態差異明顯,雌器苞數量多,雄器苞數量少並且難于發現,孢子體直立,蒴柄細長,孢蒴規則長卵形,蒴帽兜形。
  2. The influence of difference in temperature, reynolds number of film and prandtl number to the heat transfer performance on the evaporation side was discussed via the uniform wall temperature experiments. by analyzing above influence factors, the character of umbrella - plate evaporator which is fit for evaporation under little difference in temperature and fit for evaporating heat sensitivity materiel could be obtained

    通過恆壁溫實驗探討了傳熱溫差、液膜雷諾數、普朗特數這些主要因素對傘板式降膜蒸發器傳熱性能的影響,通過對以上影響因素的分析,得出了此種結構的蒸發器特別適用於小溫差情況下的蒸發,而且特別適用於熱敏性物料的蒸發等特性。
  3. The influence of difference in temperature, reynolds number of film, vacuum degree and spring parameter to the heat transfer capability on the evaporation side was studied through the uniform wall temperature experiment, by the result, the heat transfer coefficient on the evaporation side can be improved by inserting spring with proper parameter. when the reynolds number was between 4000 and 14000, and the heat transfer coefficient can be improved nearly 30 percents by inserting the fifth spring when the reynolds number nearly was 12000

    採用8種參數的螺旋線,通過恆壁溫實驗探討了傳熱溫差、雷諾數、真空度和螺旋線參數對蒸發側傳熱性能的影響,結果表明,插入參數合適的螺旋線,在雷諾數為4000 14000范圍內可以提高蒸發側傳熱系數,在雷諾數為12000左右時,加入5號螺旋線可以使蒸發側傳熱性能提高30左右。
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