Long echo time 长TE
long path echo 长路程回声
long-delay echo 长延时回波
Long-Range Echo 远距离回声
long duration echo 长持续时间回波
long-duration meteor echo 长时间流星回波
lde - long delayed echo 长延时反射回波
In the music of her voice, an echo sounded from long ago, and as I rested by her side, the decades dissolved.
在她音乐般的嗓音中，传来许久之前的回音，我躺在她身边，数十年的时光为之消却。
The Echo was written so long ago that it has escaped attention and I am now no longer called upon to render an account of its meaning.
《回声》写于很久以前，因此它逃过了人们的注意，现在也没有人来叫我算其含意的旧帐。
Relatively strong rainfall period and effectively continuous rainfall can make the echo intensity decrease greatly and remain the low index for a long time, and the visibility turns well.
较强的降水时段和有效的连续降水将大幅度消弱回波强度，并使其较长时间地维持在低指数状态，其相应能见度也大为改善。
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