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File:Stephen Bechtel, Jr. at the 2010 California STEM Summit.jpg：修订历史
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2022年11月16日 (星期三)
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2022年11月16日 (三) 09:08
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2022年11月8日 (星期二)
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{{Information |description={{en|1=STEM Interview: Stephen Bechtel, Jr. at the 2010 California STEM Summit }} |date=2012-04-11 |source=[https://www.youtube.com/watch?v=H8Oa1Bl4VPY STEM Interview: Stephen Bechtel, Jr. at the 2010 California STEM Summit] at 2:54, cropped, brightened |author=[https://www.youtube.com/user/CaSTEMLearning CaSTEMLearning] |permission= |other versions= }} =={{int:license-header}}== {{YouTube}} {{LicenseReview}}
Category:Civil engineers from the United States
[[Ca...
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