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。
Instantaneous efficiency and daily average efficiency of evacuated tubular solar heater waters are contrasted with theoretical values by model of calculation and experimental data.
利用模型计算值和实验值对真空管式太阳热水器的瞬时效率、日平均效率进行了比较分析，结果表明所建立的计算模型总体上是成功的。
The result showed that: trace-lysine-chelates are excellent nutritive feed additives, trace-lysine-chelate significantly increased average daily gain by 6.4% and improved feed efficiency by 7.0%.
结果表明：微量元素赖氨酸螯合物是优良的营养性饲料添加剂，可提高日增重6.4%，改善饲料效率7.0%。
The result showed that: trace-lysine-chelates are excellent nutritive feed additives, trace-lysine-chelate significantly increased average daily gain by 6.4% and improved feed efficiency by 7.0%.
结果表明：微量元素赖氨酸螯合物是优良的营养性饲料添加剂，可提高日增重6.4%，改善饲料效率7.0%。
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