Results show that mass area ratio (mar) is a primary factor to average dailyefficiency 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。
2
These cars have the fuel efficiency, reliability and space to get you through your daily commute with ease.
这些汽车所具备的燃油效率、性能和空间可以使您轻松度过每日上下班的时光。
3
Make People's Daily life more convenient, improve work efficiency.