Nature, Količina 103Sir Norman Lockyer Macmillan Journals Limited, 1919 |
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Zadetki 1–3 od 84
Stran 67
... material , the nation should not be dependent on a single source of supply , and the Derby Crown Glass Works , Ltd. , were encouraged to commence its manufacture , and they have already been suc- cessful in producing a number of types ...
... material , the nation should not be dependent on a single source of supply , and the Derby Crown Glass Works , Ltd. , were encouraged to commence its manufacture , and they have already been suc- cessful in producing a number of types ...
Stran 215
... materials , etc. , from nothing ? The question is best answered by an example . In July , 1917. the Germans first used against the Allies a new offensive material . ßß - dichloroethyl sul- phide , ( CH , C1.CH . ) . S , and with very ...
... materials , etc. , from nothing ? The question is best answered by an example . In July , 1917. the Germans first used against the Allies a new offensive material . ßß - dichloroethyl sul- phide , ( CH , C1.CH . ) . S , and with very ...
Stran 315
... material more than 0-4 mm . in diameter is difficult to control on account of the rddies set up by the high velocities of the water - currents ( 47 mm . or more per second ) . In the mechanical analyses of sediments the two methods of ...
... material more than 0-4 mm . in diameter is difficult to control on account of the rddies set up by the high velocities of the water - currents ( 47 mm . or more per second ) . In the mechanical analyses of sediments the two methods of ...
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