因此，操作者必须在负载变化与疲劳之前的每一分钟进行手动测试。此外，本机只能用于正弦波恒载荷疲劳试验。
液压疲劳试验机电动机无级调速英文文献和中文翻译(11):http://www.751com.cn/fanyi/lunwen_62808.html
因此，操作者必须在负载变化与疲劳之前的每一分钟进行手动测试。此外，本机只能用于正弦波恒载荷疲劳试验。
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