工程师在实验室检查混凝土岩芯样本，戴着红色安全帽和眼镜，在可控环境中确保质量和强度分析。
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工程师在实验室检查混凝土岩芯样本，戴着红色安全帽和眼镜，在可控环境中确保质量和强度分析。
工程师在实验室检查混凝土岩芯样本，戴着红色安全帽和眼镜，在可控环境中确保质量和强度分析。在实验室环境中，一位专业的工程师正专注地检查混凝土岩芯样本。他戴着红色安全帽和防护眼镜，严格把控着检测流程，以确保对混凝土的质量和强度进行准确分析，体现了专业、严谨的工作态度。
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