The test result indicated that compared with wheat flour, potato flour featured very low moisture content, relatively big falling number and relatively high crude starch content. 试验结果表明,较之小麦粉,马铃薯全粉水分含量很低,降落值较大,粗淀粉含量较高;
Solar air collector system have been developed for 30 years, and it has a very perspective to employed in solar heating area for the advantages that has low cost, simple structure, no moisture condensation or frost phenomenon and rapid response for adjusting indoor air temperature. 太阳能空气采暖系统已经有近30年的发展历程,它具有结构简单、价格低廉、室温调节迅速以及无结霜结露现象等优点,是一种极具应用前景的太阳能采暖技术。