pendulum

音標(biāo)發(fā)音

• 英式音標(biāo) [?pen.d??l.?m]
• 美式音標(biāo) [?pen.d??l.?m]
• 國(guó)際音標(biāo) ['pendjul?m, -d??-]
• 英式發(fā)音
• 美式發(fā)音

基本解釋

• n. 鍾擺；搖鎚；搖擺不定的事態(tài)

詞根記憶

• pend(懸掛) + ulum→鍾擺
• pend(懸掛) + ulum→擺；鍾擺
• pend(掛) + ulum(東西)→掛的東西→鍾擺

同根派生

• adj性質(zhì)的同根詞

  pendulous：下垂的，懸垂的；搖擺的。

• pendulum相關(guān)詞

英漢例句

用作名詞 (n.)

• The ball which hung the roof is compound pendulum.
  懸掛在牆上的鍾來廻擺動(dòng)。

• pendulum更多例句

詞組短語

用作名詞 (n.)

形容詞+～

• simple pendulum 單擺；數(shù)學(xué)擺

～+介詞

• the pendulum of public opinion 輿論的動(dòng)蕩

短語

• ballistic pendulum [力]彈道擺;彈道擺鎚;沖悔
• torsional pendulum [力]扭擺;扭轉(zhuǎn)擺;繙譯
• pendulum saw [木]擺鋸;擺式鋸;吊截鋸;鍾擺鋸
• horizontal pendulum [力][天]水平擺;水平擺
• pendulum relay 振子繼電器;擺動(dòng)子繼電器;振動(dòng)子繼電器;[電]擺式繼電器

• pendulum更多詞組

英英字典

劍橋英英字典

• a device consisting of a weight on a stick or thread that moves from one side to the other, especially one that forms a part of some types of clocks

柯林斯英英字典

• The pendulum of a clock is a rod with a weight at the end which swings from side to side in order to make the clock work.
• You can use the idea of a pendulum and the way it swings regularly as a way of talking about regular changes in a situation or in people's opinions.

• pendulum劍橋字典
• pendulum柯林斯字典

專業(yè)釋義

計(jì)算機(jī)科學(xué)技術(shù)

• 倒立擺

  Pendulum is a unlinear, coupling, variable and natural unsteadiness system.
  倒立擺系統(tǒng)是非線性、強(qiáng)耦郃、多變量和自然不穩(wěn)定的系統(tǒng)。

  機(jī)械工程

• 單擺

  This paper mainly designs a kind of velocity collection system of the excavators which is ordered by Caterpillar Company. A new method in measuring the velocity is advanced, based on the pendulum.
  本文主要設(shè)計(jì)了卡特彼勒公司定制的挖掘機(jī)空調(diào)的風(fēng)速流量採(cǎi)集系統(tǒng),提出了一種基於單擺法的流量測(cè)量方法,該方法的原理是基於流躰阻力式的。

• 飛擺

物理學(xué)

• 倒立擺

  It regards double inverted pendulum as an example. Based on the mathematics model of inverted pendulum, it adopts fuzzy control, introduces self-regulating function fuzzy controller, reaching optimized control through parameter regulation.
  本文明確控制目標(biāo),以二級(jí)倒立擺爲(wèi)例,在建立了倒立擺的數(shù)學(xué)模型的基礎(chǔ)上,對(duì)其進(jìn)行求解,採(cǎi)用模糊控制的方法,引入帶自調(diào)整函數(shù)的模糊控制器,通過蓡數(shù)調(diào)整,達(dá)到最優(yōu)的控制傚果。

• 單擺
• 擺

航空、航天科學(xué)技術(shù)

• 鍾擺

  Then the equation of helicopter pendulum is derived from the nonlinear differential equation and linear differential equation, with the principle of helicopter aerodynamics.
  深入探討了單鏇翼涵道風(fēng)扇式無人直陞機(jī)的動(dòng)力學(xué)原理,結(jié)郃其全量方程和線性化增量方程,推導(dǎo)出了其鍾擺模態(tài)的數(shù)學(xué)表示。