impact hardness testing machine

例句：

1. 1.This impact hardness testing machine is usedto measure the hardness of materials.
   这种冲击硬度测试机用于测量材料的硬度。
2. 2. Theimpact hardness testing machine was developed bya company specializing in metal testing.
   冲击硬度测试机是由一家专门从事金属测试的公司开发的。
3. 3. The impact hardness testing machinecan provide accurate results for various materials.
   冲击硬度测试机可以为各种材料提供准确的结果。