1. Climatic conditions, e. g. max. temperature range, humidity, air density. 气侯情况,如:最大温度范围,湿度,空气密度。
2. Method:With falling the drying temperature and control the humidity below 40%. 方法:通过降低干燥温度,并把湿度控制在40%以下。
3. Since humidity generally decreases with height, enhanced vertical mixing usually causes evertual evaporation and disappearance of the cloud. 由于湿度一般随高度减小,垂直混合的加强通常造成云逐渐蒸发与消散。