Self-sustained oscillation
[计] 自振荡
🧩 词语组成解析
self
[self]
n. 自己;本人;本性;私利;
adj. 同一的;纯净的;单一的;
vt. 使自花授精;使近亲繁殖;
vi. 自花授精;
sustained
[səs'teind]
adj. 持久的，持续的;
v. 维持( sustain的过去式和过去分词 );支撑;忍受;长期保持;
n. 振动, 动摇, 变动, 彷徨, 电波\\n[医] 振动, 摆动
🗣️ 情景例句
We are four in all.
我们家共有四口人。
He was renowned as a portrait painter.
他以肖像画家著名。
After switching on powerful arc lights, they saw great stalagmites -- some of them over forty feet high -- rising up like tree-trunks to meet the stalactites suspended from the roof.
他们打开强力弧光灯，看见一株株巨大的石笋，有的高达40英尺，像树干似地向上长着，与洞顶悬挂下来的钟乳石相接。