Сборник упражнений по грамматике английского языка. Стрелкова М.С. - 34 стр.

32.1 tons output per shift per face worker.
      15. The properties of the ore are known to have varied widely.
      16. The average number of years of work experience is estimated to be 18
or 19 years.
      17. Many managers believe that any measurements of productivity are
more likely to backfire (вредить) than produce useful results.
      18. The competition is likely to continue for as long as mineral producers
see an economic edge in acquiring lager trucks and shovels.
      19. Distribution of the coal basins appears to be determined by the relief of
the land surface, which has been formed before the peat deposition.
      20. Construction of the mill is estimated to take 20 month.
      21. These conditions are likely to be found in many gold mines.
      22. We consider nuclear energy to be the prime source of heat energy.
      23. The early discoveries in nuclear science showed the atomic nucleus to
be a vast source of energy.
      24. We know the temperature in deep mine to decrease with its depth.
      25. We know step room and pillar to be a variety of room-and-pillar mining
method.
      26. Step room and pillar is known to be a variety of room-and-pillar mining
method.
      27. The results of testing new explosives are known to have been used in
practice.
      28. We hoped new methods of loading to appear in practice soon.
      29. Specialists believe new explosives to be used in practice soon.
      30. New loading equipment is expected to appear in practice soon.
      31. New loading equipment was expected to appear in practice soon.
      32. After the production was found to be low, new mining method was
used.
      33. This loading equipment is sure to be perfect for this mine.
      34. Only small-size equipment may be expected to fit recovery of veins.
      35. Mining institute researchers reported new method to be successfully
tested.
      36. Mining institute researchers reported new method to have been success-
fully tested.
      37. Diesel exhaust has been found to contain 35 chemicals, which can
damage human health.


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