| 摘要 |
<p>A light weight plate segment (200, ..., 400C) configured to be mounted on a disc (714, 716) of a disperser or refiner for comminuted cellulosic material including: a front face having disperser teeth or refining bars; a back face (205) having a raised post (260, 720) surrounding a fastener attachment structure (220) and a raised plate positioning section (210, 726); side edges of the plate segment (200, ..., 400C); and a radially outer edge and a radially inner edge extending between the side edges; wherein the back face (205) lacks raised structures along the side edges.
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