STALE 发表于 2025-3-28 18:29:34

The Discovery of Blood Circulation As early as the prehistoric period (Magdalenian era to 15,000 years BC) the heart seems to have been represented on the painted rocks in the Pindal cave (Spain): a splash of red in the centre of a painted elephant can be interpreted as a primitive cardiac symbol. In the terracotta tablets from the
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查看完整版本: Titlebook: Cellulose Derivatives; Synthesis, Structure Thomas Heinze,Omar A. El Seoud,Andreas Koschella Book 2018 Springer International Publishing AG