Vicat needle tester

例句：

1. 1. This Vicatneedle tester is used to measure the hardness of metals.
   这个维卡特针测试仪用来测量金属的硬度。
2. 2.The Vicat needle tester was invented by a French scientist in the 18th century.
   维卡特针测试仪是由一位法国科学家在18世纪发明的。
3. 3.The Vicat needle tester is widely used in metallurgy and materials science.
   维卡特针测试仪在冶金和材料科学中被广泛使用。