noncircular head

例句：

1. 1. The design of thenew car is noncircular, whichmakes it more energy-efficient.
   这款新车的设计是非循环的，这使得它更加节能。
2. 2. The process of calcification isnoncircular, meaning that it doesnot repeat itself in a cyclical manner.
   钙化过程是非循环的，这意味着它不会以周期性的方式重复。
3. 3. The noncircular nature of this problem means thatit cannot be solved with traditional methods.
   这个问题的非循环性质意味着它不能用传统的方法来解决。