结构Structure：由底座、支承块、导轨、滑块、手柄、可调定位块、刻度尺等组成。
From the base, bearing blocks, rails, sliders, handles, adjustable positioning block, scales and other components.
结构Structure：由底座、支承块、导轨、滑块、手柄、可调定位块、刻度尺等组成。
From the base, bearing blocks, rails, sliders, handles, adjustable positioning block, scales and other components.
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