critical volume fraction 中文意思是什麼

critical volume fraction 解釋
臨界體積分數
  • critical : adj 1 批判的，批評的；（在某方面）有鑒定力的 （in）。2 吹毛求疵的；愛挑剔別人的 （of about）。3 ...
  • volume : n. 1. 卷，冊；書籍；【歷史】書卷，卷軸。2. 〈常 pl. 〉大塊，大量，許多。3. 體積；容積；分量，額；【物、樂】音量；強度，響度。
  • fraction : n. 1. 小部分，碎片，片斷。2. 一些，一點兒。3. 【化學】分餾，分層，分級。4. 【宗教】聖餐麵包分切式。5. 【數學】分數。
  1. Bismuth ruthenate and silver were selected as conductor phases and the mixture of calcium oxide - alumina - silicon dioxide ( cao - al _ 2o _ 3 - sio _ 2 ) glass and lead oxide - boron oxide - silicon dioxide ( pbo - b _ 2o _ 3 - sio _ 2 ) glass was selected as inorganic binder phases. it was found that, with the increasing of volume fraction of silver and conductor phase, sheet resistivities descend and there are critical thresholds

    實驗發現，隨著功能相百分含量的增加，電阻膜層的方阻值逐漸減小，存在兩個臨界閾值，電阻溫度系數偏向正值;功能相中銀百分含量增加，膜層的方阻值逐漸減小，有一個臨界閾值，電阻溫度系數偏向正值。
  2. The resistivity - temperature curve can be predicted by using this mathematical model, which was in good agreement with the experimental data when the cb volume fraction is close to the critical volume fraction

    利用這個數學模型，還對兩種ptc材料的阻溫曲線進行了預測，與實測結果比較發現，當炭黑含量在滲流閾值附近時，預測值與實測數據吻合很好。
  3. By using a zone model, simulates the behaviour of smoke temperature, height, volume fraction of co changing with time under different smoke control and extraction conditions in the station and introduces three critical conditions as a criterion for judging the effects of different smoke control and extraction methods

    摘要運用區域模型模擬車站內不同防排煙工況下煙氣溫度、高度、 co體積分數隨時間的變化規律，以三項危險臨界條件是否實現作為衡量防排煙效果的判據。
  4. By using this model, the contribution of the thermal volume expansion of the matrix to the ptc transition of the composite is quantitatively estimated. the theory and experiment revealed that the conductive mechanism of abrupt resistivity increase at ptc transition region was equivalent as abrupt resistivity increase at the percolation curve close the critical volume fraction

    可以利用這個模型，對基體體積膨脹對ptc轉變的貢獻進行了定量分析，表明ptc轉變區的電阻突變與滲流曲線在臨界體積分數附近的電阻率突變在導電機制上是相同的。
  5. It shows there was a critical volume fraction. only when the initial pore volume fraction of the perform equal to the critical volume fraction, the free si was fully replaced with the mosi2 particles. otherwise. there would be free c and free si in the infiltrated materials

    結果表明，坯體的初始空隙率存有一個臨界值。只有當坯體的初始空隙率等於此值時，材料中的游離硅才可能被mosi _ 2完全取代。
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