The limitation of the single-effect LiBr absorption chilling circle driven by the low temperature solar energy heat source require adopting auxiliary means for proper operation.
由于单效溴化锂吸收制冷循环受太阳能热源温度较低的限制，需要采用适当的辅助手段。
2
The significantly rising temperature in winter delay the beginning dates of growing season because of the reduction of chilling requirement.
冬季温度的显著上升，使植物低温需求量被满足的时间延长，从而使开始日期推迟。
3
Effects of chilling, protected culture and gibberellin combined with low temperature on flowering and new bulb reproduction of Asiatic hybrid lily were studied.