ratio

音標(biāo)發(fā)音

• 英式音標(biāo) [?re?.?i.??]
• 美式音標(biāo) [?re?.?i.o?]
• 國際音標(biāo) ['rei?i?u, -??u]
• 英式發(fā)音
• 美式發(fā)音

基本解釋

• n.比，比率
• vt.求出比值，除，使…成比例

詞源解說

• 1636年進(jìn)入英語，直接源自古典拉丁語的ratio，意為計(jì)算，估計(jì)，程序。

詞根記憶

• rat(清點(diǎn)) + io→比，比率
• rat(計(jì)算) + io→和計(jì)算有關(guān)的→比例

同根派生

• adj性質(zhì)的同根詞

  rateable：按比例的；可估價(jià)的；應(yīng)納稅的（等于ratable）。

• ratio相關(guān)詞

英漢例句

用作名詞 (n.)

• The ratio of pupils to teachers was 30 to 1.
  學(xué)生和老師的比率是30比1。

• ratio更多例句

詞組短語

用作名詞 (n.)

動詞+～

• show a ratio of ...to... 比率為…比…

形容詞+～

• direct 〔inverse〕ratio 正〔反〕比

名詞+～

• birth 〔death〕ratio 出生〔死亡〕率
• current ratio 電流比

介詞+～

• at the ratio 按比率
• by a ratio of 根據(jù)…的比率
• in direct ratio 按正比率
• with the ratio of 以…比率

～+介詞

• ratio between 兩者之間的比

• ratio更多詞組

英英字典

劍橋英英字典

• the relationship between two groups or amounts that expresses how much bigger one is than the other

柯林斯英英字典

• A ratio is a relationship between two things when it is expressed in numbers or amounts. For example, if there are ten boys and thirty girls in a room, the ratio of boys to girls is 1:3, or one to three.

• ratio劍橋字典
• ratio柯林斯字典

專業(yè)釋義

化學(xué)

• 配比

  Ceramic with zero temperature coefficient could be obtained at suitable ratio.
  適合的配比可得到零溫度系數(shù)的復(fù)相BZN組分。

• 比例

  The phenyl content and the Phenyl/methyl ratio in the sample were also obtained,and validated with 1H NMR.
  同時(shí)對該混合環(huán)體的苯基/甲基比例以及苯基含量進(jìn)行了計(jì)算,并得到氫譜的驗(yàn)證。

  經(jīng)濟(jì)學(xué)

• 比率

  Which exchange-stock ratio ison earth most reasonable one?
  但是，究竟什么樣的投股比率才是最合理的？

• 比重

  And the ratio of foreign investment in China’s producer services is even lower.
  其中,生產(chǎn)性服務(wù)業(yè)吸引外資的比重則更低。

• (金銀復(fù)本位制中)金銀的法定比價(jià)

農(nóng)業(yè)科學(xué)

• 比例

  The maize sown ratio enhanced across the whole of China.
  全國大部分地區(qū)的玉米種植比例呈現(xiàn)增加趨勢。

• 配比

  The ratio of 2∶1 is the best ratio to produce maximum biogas yield.
  在雞糞與玉米秸稈和豬糞與玉米秸稈配比均為2∶1時(shí),沼氣產(chǎn)量最大,產(chǎn)氣速率峰值最大,產(chǎn)氣效果最好。

• 性比

  In this paper we discussed the reasons for the change in sex ratio from 3 female : 1 male to 5 female : 1 male from the triploid female silkworm which is generated from a tetraploid female silkworm.
  解釋了過冷卻處理誘發(fā)的四倍體后代三倍體蠶發(fā)生性比從3：1向5：1變化的現(xiàn)象。

  機(jī)械工程

• 比值

  The internal flexibility ratio,a new concept,was brought forward to compare the performances of flexible hinges quantitatively.
  提出了鉸鏈內(nèi)各柔度間的比值概念,為定量地比較柔性鉸鏈的性能提供了依據(jù)。

• 速比

  Meanwhile,the paper analyses the interactions of the two solutions for two unequal velocity ratio,accordingly it provides particular,convenient,exact and easily verified formula for calculation of the unequal velocity ratio of a single cardan joint.
  分析了兩種不等速速比求解方法之間的相互關(guān)系,為十字軸萬向節(jié)不等速方面的分析計(jì)算提供了詳細(xì)、簡便、準(zhǔn)確、易于相互驗(yàn)證的計(jì)算公式。

• 比
• 比率

地球科學(xué)

• 比值

  All these fields require precise measurement of the 7Li/6 Li ratio.
  所有這些領(lǐng)域都要求精確地測定6Li／7Li的比值。

  交通運(yùn)輸工程

• 配合比

  First of all, the paper analysis and evaluated the mechanical properties of the raw materials ,made mixture match ratio design by laboratory test ,then confirm the parameters,just like gradation、total water consumption、optimal asphalt content and cement content。
  首先對原材料性能進(jìn)行分析評價(jià),通過室內(nèi)混合料配合比設(shè)計(jì),確定混合料的級配、總用水量、泡沫(乳化)瀝青用量、水泥用量等設(shè)計(jì)參數(shù)。

• 速比

  The electric drive system consists of motor, fixed speed ratio and differential.
  由電動機(jī)、固定速比和差速器組成電力驅(qū)動系統(tǒng)。

  法學(xué)

• 判決理由

數(shù)學(xué)

• 比率

  Moreover, I present a method of interpolation between two isolated frames which give a new thinking way for the improvement of compression ratio in low bit rate transmission. Computer experiment proves the results are relatively satisfactory.
  而且提出隔幀插值方法，對于提高低比特率下的視頻壓縮比率給出了一種新的思維，計(jì)算機(jī)模擬試驗(yàn)證明結(jié)果比較令人滿意。

  計(jì)算機(jī)科學(xué)技術(shù)

• 比
• 比率

生物學(xué)

• 比率
• 比例