fusiform ray

例句：

1. 1.The fusiform rays of the sun cast long shadows on the earth's surface.
   太阳的纺锤射线在地球表面投下长长的影子。
2. 2. The filament in the light bulb is responsible for the brightness of the bulb.
   灯泡中的丝线负责灯泡的亮度。
3. 3. Filamentary structures are often used in microelectronics to enhance signal transmission.
   微电子学中常使用丝状结构来增强信号传输。