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Junli flood gate Source wopanga
Njira yosungira madzi yodziwikiratu ndi njira yabwino yolumikizirana, popanda kuyendetsa magetsi, popanda ogwira ntchito, otetezeka komanso odalirika.
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Automatic Flip up the flood gate - Hydrodynamic pure physical buoyancy mfundo
Mlandu wa ku Talent Exchange Center ku Xi 'an City unateteza garaja yayikulu yapansi panthaka mu Sep. 2023.
