pulsation
英 [p?l'se???n]
美[p?l'se??n]
GRE低頻詞
詞態(tài)變化
動詞:?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, 所感覺到的是脈沖而非振動.
來自辭典例句
- 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.
來自互聯(lián)網(wǎng)
- 3. Vortexing can cause unstable pump operation, vibration, pulsation and severe mechanical damage.
- 渦流可能會導(dǎo)致泵運行不穩(wěn)定 、 振動 、 跳動和嚴重的機械破壞.
來自互聯(lián)網(wǎng)
- 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.
來自互聯(lián)網(wǎng)
- 5. A pulsation of the heart ; a heartbeat.
- 心動描記器上標明心跳次數(shù).
來自互聯(lián)網(wǎng)