density air 中文意思是什麼

density air 解釋
空氣91
  • density : n. 1. 稠密；濃厚。2. 【物理學】濃度；密度；比重。3. 愚鈍，昏庸。
  • air : n 1 空氣，大氣。2 天空，空中。3 微風，和風。4 態度，樣子，風度，氣派；〈pl 〉高傲的架子。5 傳播，...
  1. 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。
  2. Burst point air density

    爆炸點空氣密度
  3. The drag force decreases as the air density decreases.

    當空氣密度減小時阻力也減小。
  4. Quality control of ammonia density determination in indoor air with indophenol blue photometric method

    室內空氣中氨的靛酚藍分光光度法檢測的質量控制
  5. Nerve agents have more density than air, making them dangerous to people in low areas

    神經毒劑的密度大於空氣，致使它們對處在低洼地區的人們而言相當危險。
  6. This thesis also introduces some kinds of the jointing of cable and membrane strucfores. an open - air palestra has been designed in this thesis. the force density method has been used to analyze the shape, and the nonlinear finite method has been used to analysis the loads

    最後，本文還採用文中推導的離散方法，通過力密度法對某風雨操場進行形態分析，並通過將找形結果用非線性有限元法在無荷載狀態下計算結構的應力，結果表明本文推導的方法找形精度是足夠高的。
  7. At 6, 000 feet the density of the air was sensibly diminished.

    在六千尺高的地方，空氣顯著地稀薄了。
  8. This article aims at the boiler ' s problems in operation : 1 ) under nominal load, the smoke temperature at the outlet of hearth reaches 1200, far more exceeds 1050 the original designed temperature. this will always result in slag inside boiler and the temperature of overheater ' s pipe superheat, so that boiler cannot take nominal load and all these influence boiler ' s nomal operation heavily, 2 ) this article also studied the reason why the assistant oil becoming necessary when coal changes. during the nomal operation, many factors ( makeup of combustor and its disposal, smirch and encrust of water wall, excessive air coefficient, temperature of primary air, coal type and density of coal dust ) can deviate the designed working conditions, then affect the boiler ' s nomal operation

    本文針對該鍋爐在實際運行中存在的問題：在額定負荷下，爐膛出口超溫、低溫段過熱器前煙溫高達936 ，遠遠超過815的設計值；噴燃器四周水冷壁結焦嚴重，過熱器管壁溫度超標，無法帶上額定負荷；甚至有時因燃煤質量的變化，必須投油助燃的嚴重情況進行了分析研究。在實際生產過程中，燃燒器的結構、布置，水冷壁的粘污、結垢，過剩空氣系數、一次風溫、煤種及其濃度變化等許多因素都會偏離鍋爐的設計工況，從而影響爐內的傳熱和燃燒，造成爐膛出口超溫、水冷壁結渣等問題。
  9. The same period, the ocean thermal slow, relatively high temperature, air density changes smaller solipsism relative area of low pressure

    同一時期，海洋散熱較慢，溫度相對地較高，空氣密度變化較小，遂形成相對的低壓區。
  10. For altitudes in excess of 350, 000 feet the air density is less than 10 -7 of that at sealevel.

    在高度高於350000英尺時，空氣密度僅為海平面高度的107。
  11. For altitudes in excess of 350, 000 feet the air density is less than 10 - 7 of that at sealevel

    在高度高於350000英尺時，空氣密度僅為海平面高度的10 7 。
  12. Everything else being equal, a cold air column, because of its higher air density, is heavier than a warm air column and thus produces a higher air pressure

    在一般相同情況下，冷空氣柱因其密度較高，會比暖空氣柱重，因而產生氣壓較大
  13. The relative air density decreases with the increasing of altitude. therefore, the discharge performance of air - gap and insulator string at high altitude regions is different from that of the referring standard conditions

    高海拔地區相對空氣密度較低，絕緣子和空氣間隙的放電特性與低海拔地區有很大的差異。
  14. For " upper - air ", weather maps are usually drawn for isobaric ( i. e. equal pressure ) surfaces following the practice of conventional upper - air observations and analysis. air density and atmospheric pressure generally decrease as altitude increases

    至於高空方面，由於常規的高空觀測與大氣分析都是在標準等氣壓面上進行，所以高空天氣圖亦習慣在等壓面上繪制。
  15. Only when it takes humidity ratio h / ? as independent variable instead of absolute humidity h in researching and calculating the influence degree of the humidity on the discharge voltage, the emendation coefficients of relative air density and humidity can be independence, and can reflect the influence degree of atmospheric parameters on outer insulation discharge voltage actually

    當以比濕h代替絕對濕度h為自變量研究和計算濕度對放電電壓的影響程度時，相對空氣密度校正系數和濕度校正系數才能相互獨立，才能真實地反映大氣參數對電氣設備外絕緣放電電壓的影響程度。
  16. The entering of the tourist and lamp - light gave much energy to furong cave and the temperature in the cave rised slowly. the different temperature between the outer and the inner as the air circulation, would make the cave wet seriously in the summer and dry in the winter. the density of co2 would go up because of piston - effect, cave depositing and the tourists " entering

    遊人的進入和洞穴燈光的使用，給芙蓉洞內帶來了大量的能量，致使洞穴空氣升溫；由於動內外的溫度差和空氣的流通，開放的洞穴出現夏季高濕，冬季乾燥的變化現象； co _ 2的濃度會因為活塞效應、洞穴沉積和遊人的進入而升高，但影響最大的還是遊人，當遊客量較大的時候，洞穴co _ 2的濃度會隨遊人進入的數量增加而明顯升高，洞內co _ 2含量峰值記錄最高出現了6200ppm的記錄。
  17. Soil improvers and growing media - determination of physical properties - dry bulk density, air volume, water volume, shrinkage value and total pore space

    土壤改良劑和生長劑.物理特性的測定.毛體積干密度空氣量水量收縮值和總孔容
  18. Soil improvers and growing media - determination of physical properties - dry bulk density, air volume, water volume, shrinkage value and total pore space ; german version en 13041 : 1999

    土壤改進劑和生長劑.物理特性的測定.毛體積干密度
  19. Inverse 4 - section chromeplated steel pole, bright silver colored steel arms, manual open, high density air - jet fabrics cloth, packing with protective sleeve made of the same material as the cover, both for rainy and sunny use

    鍍鉻鋼四倒傘桿，亮銀鋼骨直三條手柄，配以高密碰擊布傘面，本色布套，晴雨兼用。
  20. Photosynthesis and transpiration have no obvious difference between different age s. viciifolia, but they have consanguineous physiological responses to environmental factors such as photon flux density, air temperature and the content of soil water. compared with caraganar, s. viciifolia formed the physiological mechanics of less photosynthetic rate and less tranpiration rate to resist drought

    狼牙刺的凈光合速率同光合有效輻射、大氣溫度和二氧化碳濃度之間沒有顯著相關性，與土壤含水量顯著正相關；蒸騰作用與光合有效輻射、土壤含水量及空氣溫度有很好的正相關性，與大氣濕度有負相關性。
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