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道路施工区域标识
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道路施工区域标识
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road construction area sign
道路施工区域标识
为降低公路施工养护事故率,维护正常的交通流运行,保护公路施工养护人员及公路使用者的安全,必须根据不同的公路等级和施工区特点设置的安全警示和相关作业。通常设在道路施工、养护等路段前适当位置,一般为长方形,蓝底白字,图案部分为黄底黑图案。
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complex number plane
complex-number space
complex of activity
complex of conics
complex of curves
complex of elements
complex of intersection chains
complex of lines
complex of rays
complex of segments
complex of spheres
complexometric titration
complexometric titration; complexometry
complexometry
complexone
complex optimization
complexor
Complex orbital Observation Near-earth of Activity of the Sun satellite
Complex Orbital Observations Near-Earth of Activity of the Sun
complex orthogonal group
complex orthogonal matrix
complex oscillation
complex over a module
complex oxide
complex oxides
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