求翻译：目前，太阳能吸附式制冷的研究已取得了一定的阶段性成果，但也存在一些不足，吸附床集热及保温性能差，冷却阶段降温困难，传热传质性能不好，吸附床密封抗压性较差等因素一直制约着其发展是什么意思？

正在翻译，请等待...

At present, solar adsorption cooling of research has been made a certain stage, but there are also a number of deficiencies, adsorption bed set Hot and Warm performance is poor, the cooling stage Cooling, heat transfer the quality performance is not very good, and adsorption bed Sealing pressure-res

At present, the solar energy adsorption type refrigeration research has yielded certain gradual result, but also has some insufficiencies, adsorbs the bed collection heat and the heat preservation performance is bad, the cooling period temperature decrease difficulty, the heat transfer mass transfer

正在翻译，请等待...

正在翻译，请等待...