... 安全梯凿井绞车Winch for safety ladder 中间轴装置Middle shaft device 差动变换装置Changing device of differential gear ...
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middle shaft device
中轴装置
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Each shaft is connected to screw without core in material pipe, there is opening in middle section of material pipe, there is hopper on opening, and there is agitating device in hopper.
每根主轴都与料管内的无芯螺旋连接，料管中段上部开口，开口上设料斗，料斗内设搅料装置。
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