文章详细信息 关键词： 数字摄影;;钢结构;;中心轴线;;变形观测 [gap=393]Keywords: close-range photography;steel structures;central axis;deformation survey
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该除尘塔分为管束平行塔中心轴线布置和垂直塔中心轴线布置两种基本类型。
The dedusting tower has two basic types of tube nest paralleling the center axes of the tower or plumbing the center axes of the tower.
所述手柄(1)具有柱状的基体，并且能够绕着柱状的基体的中心轴线旋转。
The knob (1) has a cylindrical base with a center axis, where the knob is rotatable around the center axis.
节流阀，减压阀：管道内沿直径中心轴线上的圆片状旋钮，用作节流阀门或阀门。
A disk turning on a diametrical axis inside a pipe, used as a throttle valve or damper.
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