Ib tug tomograph tau tsim nyob rau hauv St. Petersburg los ua ib tug high-precision ntsuam xyuas ntawm noob zoo
Ib qho teeb meem loj rau kev tsim qoob loo niaj hnub no yog qhov zoo ntawm cov khoom siv noob: qhov kev puas tsuaj zais tuaj yeem ua rau txo qis ntawm cov qoob loo. ...
