The bobble detachment point of subcooled boiling was identified by visual method.

过冷沸腾汽泡脱离点是用目视方法确定的。

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The results show that the local heat transfer at the front part of the drop-shaped tube is similar to round tube, but apparent difference appears behind the detachment point.

结果表明：滴形管束局部换热规律在前端大圆部分与圆管管束相似，但在脱体点以后差别较大；

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