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E51.8801Plasma Teeb 3
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E51.9101Air Lub Caij Nplooj Hlav Qws Zaum.
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E52.A201Air Cov Khoom Hluav Taws Xob
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E51.6701Qhov Txuj Ci
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E51.0111Demo. Sib npaug
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E53.9401Wind Powered Taug Kev Mini Strandbeest DIY Qho Khoom Ua Si
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E53.7009Solderless breadboard Jumper Hlau, Teeb ntawm 140
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E51.2005Txhais Zoo Nkauj Cov Nta Sib Kis tau ntawm 8, 8cm
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E53.8108DIY Kev Siv Hluav Taws Xob Tsheb Kom qeeb, Kom Muaj Tsheb Me Me
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E51.0114Txoj npab Npog Sib Tw Nrog Alumnium Sawv
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E53.8134Rubber Band Txheej Txheem Dav Hlau, 19.7 ′, Yas
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E53.9412YY Cov Kev Pabcuam Kev Ua Pa (Tus qauv Tub Ntxhais Kawm)
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E53.8177DIY Crank Txuas Qws Woodpeckers
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E53.8206DIY Dual Channel Chaw Taws Teeb Tshav Tsheb
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E53.8202DIY AC Generator Faraday Sim
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E53.9411DIY Kev Ntshav Ntshav (Cov Qauv Tub Ntxhais Kawm)
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E51.2004Geometrical Nta Teeb ntawm 12, 5cm
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E53.8176Hydraulic Tshav Pauv Kev Tshawb Fawb
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E53.8158DIY Electromagnetism Spinning Top
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E53.9105DIY Cov Ntoo Ntoo, Slot Ntug, Xim
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E53.4501DIY Cardbox 3D Tsom iav rau Movie
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E53.9113Balsa Roj Hmab Band Powered Glider
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E53.9010Switch Hom Hwj Hwj Hwj Hawm Ua Qauv
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E53.8137Rubber Band Txheej Txheem Dav Hlau, 19.7 ′
