Figure 4 - 2 shows a present - day laboratory version of the electroscope.图4 - 2就是目前实验室里的验电器样式.The leaves of the electroscope slowly diverge.验电器的叶片慢慢张开.Figure 4 - 2 a present - day laboratory version of the electroscope....
It isn't far from the graceful Circlet asterism in the constellation Pisces.它的不远处,就是带有优雅头箍的双鱼座星群.First, locate the prominent Teapot asterism in the constellation Sagittarius the Archer.首先, 先找出人马座中著名的‘大茶壶’星群.The spac...