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Dioscorea cirrhosa contains high units of tannin, which is used for dyeing to protect fibers and prevent fiber damage. In the early days, people took Dioscorea cirrhosa to dye fishing nets, which could enhance the durability of fishing nets and resist corrosion. Red brick with strong local flavor can be dyed with Dioscorea cirrhosa without mordant and has high color fastness.《超能疯人院》讲述一个来自“落后”星球的青年人自制飞行器来到地球，寻找曾经因战争而流亡到地球的亲人，却发现隐藏的坏人一直进行着不为人知的计划…… Love Books love seires第四部曲暗黑童话由Tao和 Aokbab主演但齐国人相信，楚人明白唇亡齿寒的道理，至少会协同作战，共抗章邯。一名叫达尔的走失男孩被小镇人们发现，由于没人认领，他被带到福利院。经过检查，医生发现他身体各项机能正常，而且智商很高，只是失去了一部分的记忆。The creepage distance is divided into two grades, and the creepage distance of 300V grade is ≥ 5 mm; Creepage distance of 600V grade ≥ 7mm. The creepage distance is designed for 220V voltage according to 300V grade, and the creepage distance is designed for 380V voltage according to 600V grade. For 220V and 380V high-power parts, character marks are applied to allow cuts in PCB design to meet the requirements of creepage distance.可是。