In the absorption work, a gas mixture prepared by mixing solute-saturated nitrogen with pure nitrogen in a given volume ratio was charged into the gas chamber and came in contact with pure water.
The influence of the kind and using level of silica powder on the gelation time, impact strength, waterabsorption and volume resistivety of the epoxy encapsulateing materials were studied.
考察了硅微粉的种类及用量对环氧灌封材料的凝胶化时间、冲击强度、吸水率、体积电阻率的影响。
3
However the COP of conventional ammonia-waterabsorption refrigeration system is relatively smaller because of its more equipments, large volume and more steel consumption.