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编号：11HPB017 - gd.gov.cn:2021-8-1 · 6.2.2 加速器放射治疗设备辐射防护措施 （1）将加速器机使用场所划分成控制区（治疗室）和监督区（控制室）。 （2）机房设计充分考虑辐射对工作人员和周围公众健康的影响，满足安全与防护技术要求。加速器机房设置迷道，墙体有足够的屏蔽防护厚度。

Majority allows construction until court decides merits of case against DOD budget raids next term; Justice Breyer wrote court dissent.

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Order is another potential blow to firm following the 2018 pedestrian bridge collapse in Florida.

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Bechtel elevates unit chief Craig Albert to corporate COO; WSP names Denise T. Roth to replace John Porcari as president, U.S advisory se...

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State construction employers face new responsibilities.

Officials: Arizona Rail Bridge Collapse Follows Prior Derailment in June

The south side of a 100-year-old bridge in Tempe collapsed after a train derailment the morning of July 29.

Utility Report on Energy Storage Battery Explosion Cites Equipment Flaw

Outside probers for Arizona Public Service point to 'extensive cascading thermal runaway' in 2019 accident that injured first-responders.

如何评价rcnn、fast-rcnn和faster-rcnn这一系列方法？ - 知乎:2021-2-22 · 首先膜拜RBG（Ross B. Girshick）大神，不仅学术牛，工程也牛，代码健壮，文档详细，clone下来就能跑。断断续续接触detection几个月，将自己所知做个大致梳理，业余级新手，理解不对的 …

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Jeff Rubenstone
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Jeff Yoders
COVID-19 kept this year's selected achievers from meeting in person to share ideas for tackling key construction challenges, but the virtual voices of these visionaries came through loud and clear …
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Top 225 International Design Firms: Companies Deal With Twin Crises

Gary j tulacz
Gary J. Tulacz
Peter reina
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Global design firms are coping with the impacts of COVID-19 and a plunge in oil prices in an already sluggish market …
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Air Purifiers with Filters that 'Kill' Coronavirus Are in Production

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Nadine M. Post
Production begins on mobile units that deactivate coronavirus, and air-handling-system retrofits will be available soon …
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After a Decade of Work, Fusion Reactor Assembly Begins

Peter reina
Peter Reina
Construction of the fusion reactor's buildings ended in March. Components began arriving a month later. …
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Coronavirus Coverage

Latest Updates On The Coronavirus Pandemic

ENR Editors
ENR tracks new industry impacts as COVID-19 forces project closures and interrupts global business. …
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Transportation

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Tom ichniowski
Tom Ichniowski
Legislation, which provides funding over five years, now goes to White House for Trump's signature. …
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Nadine M. Post
With the lengthy and complex permitting and approval process complete and almost all the other details worked out, construction could begin in mid-November on the estimated $100-million fix for San …
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Viewpoint: How COVID-19 Can Boost Your Business Development

Tara Bleakley, TLC Engineering Solutions okss加速器 Jeni Dzenis, NELSON Worldwide
Three AEC marketing professionals urge a new look at strategies to deliver better outcomes in the post-pandemic environment.
Workforce

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Justin Rice

COVID-19 exposed flaws in many global systems but it also created new opportunities for the industry’s bright and motivated fixers.

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ENR New England Announces Best Projects

By Justin Rice

ENR New England is pleased to announce the 2020 ENR New England Best Projects winners.

ENR Mountain States Announces 2020 Best Projects Winners

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Enclos Corp. Named ENR Southwest's 2020 Specialty Contractor of the Year

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New realities of working through the pandemic have intensified the need to keep industry diversity on the front burner.

Workforce

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Louise Poirier

编程 - 收藏夹 - 知乎:2021-1-29 · 有问题，上知乎。知乎，可信赖的问答社区，以让每个人高效获得可信赖的解答为使命。知乎凭借认真、专业和友善的社区氛围，结构化、易获得的优质内容，基于问答的内容生产方式和独特的社区机制，吸引、聚集了各行各业中大量的亲历者、内行人、领域专家、领域爱好者，将高质量的内容透过 ...

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Jeff Yoders

Thought leaders see new, broader technology applications and an era of leveraging lots more historical project data

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How Contractors Can Keep Labor Costs Flexible To Help Survive a Downturn

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In construction, we can’t solve a global pandemic, but we can protect our contracting companies by keeping overhead flexible in case business declines.

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