expansion ratio

基本解釋

The large expansion ratio of liquid-to-gas can rapidly build pressure in systems where liquid can be trapped.
在液體受到束縛的系統里，液體到氣體的大膨脹率能夠迅速導致壓力積累。
For any given portion of air, the greater expansion ratio allows more energy to be converted from heat to useful mechanical energy meaning the engine is more efficient.
對于任何給定的空氣部分，更強大的擴展比允許更多的精力從熱量轉換為有用的機械能，這意味著發(fā)動機效率更高。
diycnc.org
Because of the large expansion ratio of liquid to gas, it is very important to provide adequate ventilation in areas using liquid nitrogen.
因為液體到氣體的大膨脹率，為正在使用液氧的地方提供充分的通風非常重要。
www.airproducts.com.cn

While the ability of some smaller banks to lend is restricted by the loan-to-deposit ratio regulations, sluggish credit expansion was not primarily a result of liquidity constraints, Barclays analysts said.
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For its part to control consumer spending and credit expansion, the central bank raised the reserve requirement ratio for banks six times and increased interest rates three times this year.
FORBES: China "Slowing" as Hu Jintao Promises More Price Controls
Using big loans to finance expansion, it has a sky-high debt-to-equity ratio of more than 300%.
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發(fā)泡倍率
The effects of processing conditions,such as compression moulding temperature,compression moulding time,on the expansion ratio of SBS were also investigated.
考察了制備工藝即模壓溫度和模壓時間對SBS發(fā)泡倍率的影響。
膨脹比

膨脹率
擴張比
The castellated beams with rounded rectangular holes can avoid stress concentration of the hexagon castellated beams and the loss of the expansion ratio of the circular castellated beams.
四角修圓孔蜂窩梁能夠避免六邊形孔蜂窩梁的應力集中和圓孔蜂窩梁的擴張比損失。
機械工程
膨脹比
膨脹率

膨脹倍數
The results show that microspheres have good sphericity, temperature and salinity tolerance and good dispersion in water, which are swelled when absorbing water. The expansion ratio increases with the temperature and declines with the mineralization.
研究表明:微球有很好的圓球度,在水中分散良好,并有很強的耐溫和耐礦化度能力;微球具有一定膨脹性,溫度越高,礦化度越低,微球膨脹倍數越大。
地球科學
膨脹倍數