The shape and size distribution of ice crystals in the frozen wet gluten were studied indirectly by microscopy and mercury porosimeter.

用扫描电镜和压汞仪间接观察和分析了冻湿面筋蛋白中冰晶和粒度分布。

Operating costs of using the steam jet refrigeration system to cool the temperature of water in air conditioning system are lower than the refrigerative compressor.

用蒸汽喷射设备作为空气调节系源,不论在基建费用及经常运转费用方面均较氨冻机来得经济,因此近年来它已渐为有关工业部门所重视。