Cov kws tshawb fawb ntawm Tomsk Polytechnic University txhim kho thev naus laus zis kom tau txais cov ntxhia chiv
Tomsk Polytechnic University cov kws tshawb fawb tab tom txhim kho thev naus laus zis kom tau txais cov ntxhia chiv los ntawm kev hloov cov av nplaum pob zeb glauconite thiab smectite, ...