бөмбөг тээрэмдэх terra sig. Productivity Econlib. The growth of productivity—output per unit of input—is the fundamental determinant of the growth of a country's material standard of living The most commonly cited measures are output per worker and output per hour—measures of labor productivity One cannot have sustained growth in output per person—the most general ...
Төмрийн хүдэр Ultrafine Mill Үнэ. chromite хүдэр баяжуулах - lekoasteam. chromite хүдэр баяжуулах. CHROMITE USGSChromite boulders and sand are therefore as a rule more abundant in the surface soil than in the solid serpentine beneath Many pros pectors who find boulders of …