用螺旋测微器测量水准仪平移的距离，从而得到钢丝长度的微小变化值。
The small variation of the steel-wire's length can be obtained by measuring the displacement of leveling bench with micrometer.
会使用量具，例如螺旋测微器，卡尺等。
Use of precision measuring tools, such as micrometers, calipers, etc.
分别使用显微硬度仪、金相显微镜、表面粗糙度仪、铜库仑计以及螺旋测微仪等测试镀层相关性能。
The effects of current density on the performance of Ni and its alloy coatings were researched detailedly.
分别使用显微硬度仪、金相显微镜、表面粗糙度仪、铜库仑计以及螺旋测微仪等测试镀层相关性能。
The effects of current density on the performance of Ni and its alloy coatings were researched detailedly.
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