Results show that mass area ratio (mar) is a primary factor to average daily efficiency and instantaneous efficiency curve of tubular solar water heaters is not straight line.
结果表明,水量配比(MAR)是影响日平均效率的主要因素;真空管式太阳热水器的瞬时效率不是线性分布。
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The results show that it has much better performance than that of the baseline rod of the same mass, whose diameter is equal to that of the tubular part of the telescopic penetrator.