The improved belt box is composed of two semicircular guard discs and parallel rollers with equal length positioned between the guard discs.
所改进后的带盒由两个半圆形挡盘和定位在挡盘之间的平行、等长的轴辊组成。
The improved belt box is composed of two semicircular guard discs and parallel rollers with equal length positioned between the guard discs.
所改进后的带盒由两个半圆形挡盘和定位在挡盘之间的平行、等长的轴辊组成。
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