high-frequency testing apparatus

例句：

1. 1.The high-frequency testing apparatus is used to measure the electrical resistance of materials.
   高频测试设备用于测量材料的电阻。
2. 2. This high-frequency testing apparatus can detect defects in metal parts with high accuracy.
   这种高频测试设备可以以高精度检测金属部件的缺陷。
3. 3.The manufacturer claims that their high-frequency testing apparatus is the most accurate in the industry.
   制造商声称他们的高频测试设备是行业内最准确的。