Sentence Examples


  • Boron nitride BN is formed when boron is burned either in air or in nitrogen, but can be obtained more readily by heating to redness in a platinum crucible a mixture of one part of anhydrous borax with two parts of dry ammonium chloride.
  • Bn a p.
  • (i) If from the other angular points B, C, D, E, perpendiculars BN, CP, DQ, ER, are drawn to the base MS (fig.
  • If BN, CP, DQ, FS, GT are the perpen diculars to AE from the angular points, the ordinates NB, PC,..
  • Between 1895 and 1906 they rose 15% bn the average among males of all ages, and as much as 30% among women and girl workers.

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