狭长形宝石被切成细条形的宝石.A gem cut in the form of a narrow rectangle.畦灌可以描绘成长条形的格田,沿其长边方向具有较缓的坡度.Border irrigation can be described as elongated basins with a gentle slope in the long direction....
图4 - 2就是目前实验室里的验电器样式.Figure 4 - 2 shows a present - day laboratory version of the electroscope.验电器的叶片慢慢张开.The leaves of the electroscope slowly diverge.图 4-2 就是目前实验室里的验电器样式.Figure 4 - 2 a present - day laboratory version...