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1)  hollow contracting tube
空心环缩放管
1.
Heat interchangers with hollow contracting tube are applied in two plants in Guangdong, and very good result is obtained.
针对空心环缩放管管壳式换热器在广东两家厂家工业化应用所取得的良好效果,论述了其技术特点及设计、制造的要点。
2)  hollow cathode discharge tube
空心阴极放电管
3)  inter-tube ring supporting
空心环管间支承
4)  converging-diverging tube
缩放管
1.
Mechanism of heat transfer enhancement for converging-diverging tubes and thermal resistance distribution;
应用热阻分析缩放管强化传热机理
2.
Local characteristics in converging-diverging tube with delaying self-sustaining swirl flow
缩放管内带衰减性自旋流的局部性能
3.
The fluid flows with periodic self-sustaining swirl flow in a converging-diverging tube inserted with regularly spaced twisted-tape elements.
在缩放管内间隔插入多个旋流片的通道中,流体流动呈现周期性自旋流。
5)  convergent-divergent tube
缩放管
1.
Experimental Investigations on the Heat Transfer and Fouling Characteristics of Convergent-Divergent Tubes;
缩放管传热与污垢特性的实验研究
2.
A series of experiments have been carried out to explore the heat transfer and flow resistance performances of four kinds of enhanced tubes such as spiral tube, traverse corrugated tube and 2convergent-divergent tubes.
对螺旋槽管、横纹管和 2种不同结构尺寸的缩放管进行了流阻和传热性能实验研究 ,得到了这 4种强化管的流阻和传热系数 ,并与光滑管进行了对比。
3.
The comparative experiments on the flow resistance and the composite fouling of the convergent-divergent tube and its corresponding plain tube were carried out.
实验室里进行了缩放管与对应光管管内混合污垢的对比实验,实验工质为加有MgO或CaSO颗粒的人工硬水。
6)  convergent-divergent nozzle
缩放喷管
1.
A numerical simulation was performed of the steam/liquid dual-phase flash evaporation critical flow within the convergent-divergent nozzle.
本文建立了非平衡态相变时,计及两相相对滑移和流型转变的两流体分相流动的机理模型,对缩放喷管内汽液两相闪蒸临界流进行了数值模拟。
补充资料:空心阴极放电管
分子式:
CAS号:

性质:发射光谱分析用的一种激发光源。根据低压气体辉光放电原理制成。阴极由石墨、铜、铝或不锈钢制作;阳极则为镍、钼或钨。放电管抽成真空后再充入氦、氖或氩。两极加电压1000V产生空心阴极放电。封闭于放电管中的试样,放电时进入等离子体,蒸发与激发发光。可用于易挥发卤化物的元素分析。

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