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，意為計算，估計，程序。詞根記憶rat(清點) + io→比，比率rat(計算) + io→和計算有關(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)行了計算,并得到氫譜的驗證。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,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算提供了詳細(xì)、簡便、準(zhǔn)確、易于相互驗證的計算公式。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,通過室內(nèi)混合料配合比設(shè)計,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，計算機(jī)模擬試驗證明結(jié)果比較令人滿意。計算機(jī)科學(xué)技術(shù)比比率生物學(xué)比率比例