Precipitation reduction, temperature rise, and large evaporation in growth period are main climate reasons why winter wheat drought of Langfang city occur.
降水量的减少，气温的上升，冬小麦生育期蒸发量大等因素，是造成廊坊市冬小麦干旱的主要气候因素。
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The invention can realize the evaporation of hydrochloric acid at a low temperature, thereby saving heat energy and ensuring the reduction of production cost.
本发明 可在低温下实现盐酸的蒸发，节约了热能，保证了生产成本的降低。
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Characteristic: Organic matter with nature beautification and excellent reduction of moisture evaporation, also help enhance land ventilation and restrain dust rising.