经过计算，确定了吹风管的形状和结构尺寸。
With the precise model it determines the shape of the blowpipe and the dimensions.
特设下吹风管及环流排风功能，保证塑料干燥温度均匀，提高干燥效率。
Downward blowing and circumfluent hot - air assures even drying and high efficiency.
特设下吹风管及环流排风功能，保证塑料干燥温度均匀，提高干燥效率。
Downward blowing and circumfluent hot-air assures even drying and high efficiency.
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