electroscope的例句（electroscope在句子中的用法）

• Figure 4 - 2 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 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.