- The Times was much stirred by Humboldt's death and gave him a double column spread.
- The reasons for selecting open or closed hydrostatic guideway on the CNC double column boring and milling machine were discussed.
- The three coordinate numerical control double column cutting tool can adopt some variety of incise method, for example: the laser incises, the plasma incises, the high pressure water incises etc.
- Results show that the elution curves calculated by the model of the non-equilibrium double column cycling chromatography are good agreement with experimental elution curves of chromatography.
- double column jig boring machine
- double column vertical boring and turning mil