1Einführende Überlegungen
It is made up of a hierarchy of modules with well defined functions operating at a variety of rates
Für die Einkaufsabwicklung war die Einführung bereits ein großer Schritt in die richtige Richtung
Die Regierung hat ehrgeizige Programme initiiert
die durch die Euro-Einführung anfallen
Mathematical Modeling of Groundwater Pollution Rutilius Taurus Aemilianus 1Einführende ÜberlegungenGroundwater is one of the most important resources in the world. In many areas, water supplies for industrial, domestic, and agricultural uses are de pendent on groundwater. As an "open" system, groundwater may exchange mass and energy with its neighboring systems (soil, air, and surface water) through adsorption, ion exchange, infiltration, evaporation, inflow, outflow, and other exchange forms. Consequently, both the quantity and quality of