筒子架可以按每根纱线的供纱筒子的个数分类，采用这种分类方法，筒子架可分为单式筒子架和复式筒子架两种。
Creels may be classified by the number of creel positions per end supplied. Using this classification, creels are either single or multiple package creels.
绳索式木材抓斗按起重机特性适配，常用类型有单索、双索和四索三种。
Mechanical timber grab is equipped according to the characteristic of crane, which could be divided into three species, that is single rope, double rope, and four rope.
绳索式木材抓斗按起重机特性适配，常用类型有单索、双索和四索三种。
Mechanical timber grab is equipped according to the characteristic of crane, which could be divided into three species, that is single rope, double rope, and four rope.
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