fixedness
/ˈfɪkstnəs/ 28. the quality of being fixed and unchangeable. “the fixedness of his gaze upset her” synonyms: unalterability.
noun [具体名词]固定；稳固；不变
Fixedness operating frequency. you can adjust the width of pulse to change the output power. 固定电路工作频率，调节脉冲宽度而改变输出功率。
