Tafuta ' ' kupata maudhui yanayofaa , ambayo inachukua sekunde }
Muhtasari:Kila mara nyingi kinasababishwa na nguvu ya kuunga mkono juu ya pipe ya mpira na shinikizo la kawaida ya kawaida ya ndan[Soma maandishi yote]
Muhtasari:When sampling in bulk gasoline barrels, samples shall be selected according to % of the number of gasoline barrels but n[Soma maandishi yote]