HF fatigue testing machine

例句：

1. 1. The HFfatigue testing machine is used to test thedurability of materials under high-cycle fatigueconditions.
   HF疲劳测试机用于测试材料在高循环疲劳条件下的耐久性。
2. 2. The engineers used the HFfatigue testing machine to simulate the real-world conditions for testing the new material.
   工程师们使用HF疲劳测试机模拟真实世界条件来测试新材料。
3. 3. TheHF fatigue testing machinewas a crucial tool in thedevelopment process, helping to identify potentialissues before they became major problems.
   HF疲劳测试机是开发过程中的关键工具，帮助在问题成为主要问题之前识别潜在问题。