 483  33. A mechanical method was substituted for an electric one. 34. This rate, formerly in general use, is now reserved for manual calls. 35. The question arises whether rocks are all natural combinations of mineral matter. 36. Given ferrite-core material, very good transformers can be made. 37. However simple the basic principle of the approach may seem, in many situations such an approach is not used. 38. In the preceding discussion the availability of wideband transformers was assumed. 39. The use of metals is affected by the available ore resources, the cost of extraction and refining, and the way in which they can be employed to practical advantage. 40. Low anode capacitance is of course essential. 41. The prime purpose of giving the computer a daily health check is preventive rather than corrective. 42. The lower the thrust the longer the smoothing time can be. 43. Contact for 2 hours was necessary for the 102,5dilution to effect significant receptor modification. 44. The average repeater spacing is therefore 16.2 nautical miles (30 kilometres). 45. The question now arises as to how the behaviour of metals is affected by the changes in temperature. 46. The calculation of the correlation of the noise coefficients is now a great deal more involved. 47. The plasticity of steel, whether at room temperature or at elevated temperatures, allows it to be worked either hot or cold. 483 |
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