在python中如何在x轴上有两个不同的线性比例？

import matplotlib.pyplot as plt

fig = plt.figure()
ax1 = fig.add_subplot(111)
ax2 = ax1.twiny()  # 创建第二个子图对象，共享y轴

x1 = [1, 2, 3, 4, 5]
y1 = [10, 20, 30, 40, 50]
ax1.plot(x1, y1, label='Line 1')
ax1.set_xlabel('X1 Label')
ax1.set_ylabel('Y1 Label')

x2 = [2, 4, 6, 8, 10]
y2 = [50, 40, 30, 20, 10]
ax2.plot(x2, y2, label='Line 2')
ax2.set_xlabel('X2 Label')

lines = ax1.get_lines() + ax2.get_lines()
ax1.legend(lines, [line.get_label() for line in lines])
plt.show()