Amahhavini okomisa i-vacuum asetshenziswa kabanzi ezicelweni zocwaningo ezifana ne-biochemistry, ikhemisi yamakhemikhali, ezokwelapha nempilo, ucwaningo lwezolimo, ukuvikelwa kwemvelo, njll., ikakhulukazi ukomisa okuyimpushana, ukubhaka, nokubulala amagciwane kanye nokufakwa inzalo kweziqukathi zengilazi ezihlukahlukene...
Funda kabanzi