托勒密绘制了48个星座1,000多颗恒星的星位图。Ptolemy charted more than 1000 stars in 48 constella-tions.很明显,这种做法有利于托勒密王朝.Clearly this was in the interests of the Ptolemies.在托勒密王朝统治埃及之前,埃及曾种植各种油料作物.Various oil - producing plants had been gro...