某同学设计了如图所示装置进行石油蒸馏的实验，请回答下列有关问题：

阅读下面的古诗，完成小题。
                                                                                                          山中
                                                                                                                   王维
                                                                                          荆溪白石出，  天寒红叶稀。
                                                                                          山路元无雨，  空翠湿人衣。