stepping time

• 步进时间

stepping time的用法和样例：

例句

1. Quality materials, reasonable structure and reliable performance to ensure that bit with the longest service life, reduced drilling time and reduce the use of cost.
   优质的材料，合理的结构和可靠的性能确保钻头具有最长的使用寿命，因此缩短了钻进时间，降低了使用成本。