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1)  ONB
过冷沸腾起始点
1.
The magnitude sequence of the factors that have effects on ONB (Onset of Nucle- ate Boiling) of nature circulation are confirmed as the heating power, inlet quality, liquid temperature, mass flow and pressure.
运用灰色系统理论对以氟利昂为工质的自然循环过冷沸腾起始点实验结果进行分析。
2)  initial point of steam
欠热沸腾起始点
1.
By considering the initial point of steam,the effects of tubes temperature on inlet temperature,heat flux,mass velocity,mass fraction of steam and so on were discussed.
研究了自然循环锅炉膜式水冷壁管的传热,采用编制程序对水冷壁进行温度场分布的计算,在研究方法上考虑了欠热沸腾起始点的问题,探讨了入口工质状态、炉内热流密度、质量流量、质量含汽率等对水冷壁温度的影响。
3)  onset of nucleate boiling
泡核沸腾起始点
4)  subcooled boiling
过冷沸腾
1.
Investigation of subcooled boiling incipience in flow boiling heat transfer through narrow channels;
狭缝中流动沸腾传热过冷沸腾起始点的实验研究
2.
Experimental study of natural convective subcooled boiling heattransfer in a vertical annular channel;
竖直窄环隙流道自然对流过冷沸腾实验研究
3.
Experimental study of flow instability and CHF in a natural circulation system with subcooled boiling;
自然循环过冷沸腾流动和CHF的实验研究
5)  subcooled flow boiling
过冷沸腾
1.
On the other hand, because the heat transfer coefficient of subcooled flow boiling is much larger than that of single-phase flow, subcooled flow boiling can enhance heat transfer and decrease heat transfer temperature difference.
由于过冷沸腾时液体并没有完全达到饱和温度,而沸腾换热的传热系数又大大高于单相对流换热系数,可以很好地强化传热,降低传热温差,提高传热效率。
6)  start point of minimum film boiling
最小膜态沸腾起始点
1.
There are kickpoints on the curves about critical heat flux (CHF) and start point of minimum film boiling ( T min ) of vapor liquid two phases flow.
汽液两相流动的CHF(临界热流密度 )和Tmin(最小膜态沸腾起始点 )等特性点附近曲线存在转折 ,即在此点附近曲线的梯度要发生变化 ,从数学角度看这些点必然具备一定的奇异性 。
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性质:指一个或多个特定核苷酸序列,是DNA复制的起始处。没有起始点的任何DNA不能在体内复制。大肠杆菌染色体DNA的复制起始点ori C处于遗传图谱中83.5min处,它的必要长度为245bp,含有DNA复制发动蛋白和其他各种酶的识别和作用序列。细菌、质粒和病毒中,这样的位置常常只有一个。而真核中一个染色体DNA上常会有多个复制起点。包含复制起始点的DNA可称为复制子(replicon),如细菌染色体DNA为千个复制子。一般认为ori C DNA与细胞膜的相互作用对染色体DNA复制与分离的调控有重要意义。

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