• 本文介绍上海第二十一棉纺织厂中华机器厂联合研制1511自动换电子装置

    An electronic protector was introduced for decreasing slack and dense defects on loom type 1511 by the Shanghai Cotton Spinning and Weaving Mill No. 21 and the New China Machine Factory.

    youdao

  • 本文介绍上海第二十一棉纺织厂中华机器厂联合研制1511自动换电子装置

    An electronic protector was introduced for decreasing slack and dense defects on loom type 1511 by the Shanghai Cotton Spinning and Weaving Mill No. 21 and the New China Machine Factory.

    youdao

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