这次降雨是受西南暖湿气流和冷空气的共同影响，降水、降温都比较明显。
This rainfall is influenced by the southwest warm and humid air and cold air jointly as well as the rainfall and temperature decline will both be obvious.
南下冷空气在江南一带被来自低纬的西南暖湿气流和东南暖湿气流所切断，形成一高位涡冷空气中心。
The air was cut by the Southwest and Southeast warm moist air flow from low latitude in the vicinity of South of the Yangtze River, and formed a high PV center of cold air.
南下冷空气在江南一带被来自低纬的西南暖湿气流和东南暖湿气流所切断，形成一高位涡冷空气中心。
The air was cut by the Southwest and Southeast warm moist air flow from low latitude in the vicinity of South of the Yangtze River, and formed a high PV center of cold air.
应用推荐