The research on the relations of bo sea kingdom and shute culture is a new research field on bo sea history 摘要渤海国与中亚粟特文明的关系是渤海史研究的新领域。
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2 . machine will auto stop when the shute or weft opens , or weaving is done . it has higher output , quality than four shuttle circular looms . 3 . controlled main equipment speed with frequency converter 主机变频调速，改善起动性能，缩短定机时间，减少疵布率，节约电能和方便速度变换
