DIX, an index to evaluate the droplet drift of spraying parts, was introduced here. The results showed that both droplet size and the meteorological conditions affect the drift, whereas the droplet size and wind speed were the key factors.

• 采用飘移潜在指数(DIX)作为衡量评价喷洒部件雾滴飘移特性的指标,结果表明,雾滴大小和环境气象条件对雾滴的飘移均有不同程度的影响,但雾滴大小和风速是影响飘移损失最主要的因素。