钢珠

例句：

1. 1. The engineerused a steel bead to fix thescrew.
   工程师用一个钢珠来固定螺丝。
2. 2. The steel bead was carefully placedon the edge of the table.
   钢珠小心翼翼地放在桌子的边缘。
3. 3. The steel beadis commonly used in industrial machinery for itsdurability and precision.
   钢珠在工业机械中常用作其耐用性和精确度。