Complex envelop
[电] 复包线
🧩 词语组成解析
envelop
[in'veləp]
vt. 包围，包住;笼罩，遮盖;
🗣️ 情景例句
Oh, I like it.
噢， 我喜欢哑谜。
Knowledge is the antidote to fear.
知识可以解除恐惧。
but that was precisely the idea adopted in some of the early instruments (seismometers) for recording earthquake waves.
但是早期记录地震波的仪器（测震仪）正是采用了这种思路。