ing their business. Already it was becoming so complicated that no one company could handle all the steps. Oil men began to specialize; some companies drilled wells and pumped out the oil; others operated pipelines to transport it; still others built great refineries and changed crude oil into the many products used by the public. This chapter is an invitation to read selections discussing different problems of "black gold" distribution, transportation and storage.
Индекс гингивита (PMA) (Schour, Massler, 1948) Для оценки тяжести гингивита (а в последующем и регистрации динамики процесса) используют папиллярно-маргинально-альвеолярный индекс (РМА)...
Роль органов чувств в ориентировке слепых Процесс ориентации протекает на основе совместной, интегративной деятельности сохранных анализаторов, каждый из которых при определенных объективных условиях может выступать как ведущий...
ing their business. Already it was becoming so complicated that no one company could handle all the steps. Oil men began to specialize; some companies drilled wells and pumped out the oil; others operated pipelines to transport it; still others built great refineries and changed crude oil into the many products used by the public. This chapter is an invitation to read selections discussing different problems of "black gold" distribution, transportation and storage.
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