Blade scratch Paper defect where there is a hair-like indentation in a coated surface running in grain direction. Caused by a particle lodged behind the blade during coating.
顺着纸纹方向，纸面的涂层有着像头发丝的凹痕故障。起因是在涂布时有一颗料积聚在刮刀后面所致。
This paper introduced the development of investigation of infrared radiation for drying grain in short and proposed the research direction of infrared radiation technology.
介绍了红外辐射干燥谷物的研究进展情况，提出了研究方向。
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