萨义德的《东方学》是后殖民理论的开山之作。
Orientalism, written by Edward Said, is the first work on postcolonial theory.
气象资料数据变分同化的经典之作，开山之作。
Meteorological data of variational assimilation of classic, mountain work.
苹果绘图板（1979）-如图所示，是苹果平板电脑的开山之作。
The Apple Graphics Tablet (1979) – pictured at left – was the beginning of tablet computers at Apple.
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