短语
持续衰退
continuing decline
衰落持续时间
duration of fading
;
duration of fall
经济持续衰退
Economy continues to decline
;
Economic recession
通路净衰耗持恒度
channel net loss stability
保持不衰退
keep up
手持式可调光衰减器
Handheld VOA
射血分数保持心衰
HF-PEF
支持抗衰老
Supports anti-aging through cellular health
平均衰落持续时间
average fade duration