Firehose instability
[电] 套管型不稳性
🧩 词语组成解析
n. 消防带
🗣️ 情景例句
How much notice of cancellation is necessary to get my deposit back?
想把定金拿回来，要提前多长时间通知你才行？
It's been a long time.
好久不见了。
She's under the weather.
她不舒服。