cavitation
US /ˌkævə'teɪʃən/
・UK /ˌkævɪ'teɪʃən/
A1 初級
n. (u.)不可數名詞氣穴現象
影片字幕
為什麼緊張時會咬指甲? (Why Do We Bite Nails & Crack Fingers When We're Nervous? #AskDNews)
04:12
- what cracking your knuckles is actually DOING inside your fingers. The sound is caused by "cavitation via tribonucleation…"
你們折手指的聲音是由手的關節內發出,這個聲音是關節摩擦生核而發出的氣穴現象
【每天更聰明】在水裡爆炸的秘密 Underwater Explosions (Science with Alan Sailer!) - Smarter Every Day 63
05:58
- if the bottle itself... - No it sucks in... There's cavitation appears on the top
如果瓶子本身...- 不,它吸進...瓶子的頂部出現了空化現象
- bubbles to form in a liquid? Of course. Cavitation.
在液體中形成氣泡?當然了空化。
如果用一根吸管把尼亞加拉大瀑布灌進去呢? (What if you funneled Niagara Falls through a straw?)
03:37
- Without enough pressure to keep the water from boiling, bubbles of steam form in a process called cavitation. Increasing the pressure to try to push the water through harder surprisingly only makes it boil faster.
如果沒有足夠的壓力來防止水沸騰,就會在一種叫做空化的過程中形成蒸汽氣泡。 增加壓力,使水更加沸騰,但這隻會讓水沸騰得更快。
- Cavitation limits the total flow of water making it through the opening;
氣蝕會限制通過開口的總水流量;
Jacque Fresco - 社會心理學導論 - Larry King Show (Jacque Fresco - Introduction to Sociocyberneering - Larry King Show)
42:16
- cavitation is produced and their bodies rupture,
那麼會產生"空穴現象 它們的身體會裂開
雅克·法斯科 - 社會習俗介紹 - 賴瑞·金(1974) (Jacque Fresco - Introduction to Sociocyberneering - Larry King (1974))
42:16
- cavitation is produced and their bodies rupture,
那麼會產生"空穴現象 它們的身體會裂開
螳螂蝦的瘋狂生物學螳螂蝦 (The Insane Biology of: The Mantis Shrimp)
25:57
- This creates a vapor bubble called a cavitation bubble, but this bubble doesn't last long.
這會產生一個稱為空化泡的氣泡,但這個氣泡不會持續很長時間。
- So when we saw the cavitation bubbles for the first time, it really was like actually thrilling, and we knew that that that was probably the first time anybody had seen it because the technology just hadn't even been there.
所以,當我們第一次看到空化氣泡時,真的非常激動,我們知道這可能是第一次有人看到,因為當時還沒有這項技術。
動物魔法! (animal magic)
01:58
- Its strike creates tiny cavitation bubbles that collapse like micro explosions.
牠的攻擊會產生微小的空蝕氣泡,這些氣泡塌縮時就像微型爆炸。