pulsation
英[p?l'se???n]
美[p?l'se??n]
- n. 脈動(dòng)，搏動(dòng)；震動(dòng)；悸動(dòng)
詞態(tài)變化
動(dòng)詞:?pulsate;
助記提示
1、puls- "beat, strike" + -ation.
英文詞源
- pulsation (n.)
- early 15c., from Middle French pulsation (14c.) and directly from Latin pulsationem (nominative pulsatio) "a beating or striking," noun of action from past participle stem of pulsare "to beat, strike, push against' hammer, keep hitting," figuratively "drive forth, disturb, disquiet," frequentative of pellere (past participle pulsus) "to beat, strike" (see pulse (n.1)).
雙語(yǔ)例句
- 1. At low frequencies, such as 10 per sec., pulsation is sensed rather than vibration.
- 在低頻率(譬如每秒十次)時(shí), 所感覺(jué)到的是脈沖而非振動(dòng).
來(lái)自辭典例句
- 2. If the roller pulsation, the pressure on paper as cause misregister.
- 如果滾子徑向跳不靜, 則差紙的不張辛有不小有小,致使套印禁絕.
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- 3. Vortexing can cause unstable pump operation, vibration, pulsation and severe mechanical damage.
- 渦流可能會(huì)導(dǎo)致泵運(yùn)行不穩(wěn)定 、 振動(dòng) 、 跳動(dòng)和嚴(yán)重的機(jī)械破壞.
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- 4. Service in systems involving frequent flow reversals and pulsation should be avoided.
- 應(yīng)該避免應(yīng)用在頻繁出現(xiàn)流體倒流和間斷的應(yīng)用系統(tǒng)中.
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- 5. A pulsation of the heart ; a heartbeat.
- 心動(dòng)描記器上標(biāo)明心跳次數(shù).
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