Engineering Camp Project
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K tsev-Dej qhov project hauv La Paz, Bolivia
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Thawv tsev- Metro kab 17 hauv Chengdu, Suav
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Thawv tsev- Metro kab 10 hauv Tianjin, Suav
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Thawv tsev +KZ tsev-Metro kab 9 hauv Nanjin, Suav
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Thawv tsev + KZ tsev-Metro kab 5 hauv Shenzhen, Suav
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Thawv tsev-Jingxiong nthuav qhia txoj kev hauv Xiongan, Suav teb
kawm ntxiv