difference spiral

• 差分螺线

difference spiral的用法和样例：

例句

1. The stone pillar has a decorating spiral stripe.
   这根石柱有一条螺线的装饰条纹。
2. Jobs arrested Apple's slow death spiral and even put some oomph back into the pioneering computer firm he helped found.
   乔伯斯被苹果公司慢耗损的螺线所吸引，他甚至为这家他帮助创立的电脑公付出了较大的努力。