quantity n. 1.量 (opp. quality); 分量,數(shù)量;額;【物理學(xué)】值,參量。 2.〔pl.〕大量,大宗,大批,許多。 3.定量,定額。 4.【數(shù)學(xué)】量;表示量的數(shù)字[符號(hào)];【邏輯學(xué)】(名詞、特別是命題主語(yǔ)的)量。 5.【音韻學(xué)】音節(jié)的長(zhǎng)短;表示音節(jié)長(zhǎng)短的符號(hào);【語(yǔ)音】(元[母]、音節(jié)等的)音量。 6.【法律】期限。 a known quantity 已知數(shù)。 an unknown quantity 未知數(shù);〔比喻〕難預(yù)測(cè)的人[物]。 a negligible quantity 可忽略的量;〔比喻〕無(wú)足輕重的人〔物〕;可忽略的因素。 a quantity of 一些。 in quantities 大量。 in quantity 很多。
vector n. 1.【數(shù)學(xué)】向量,矢量,動(dòng)徑。 2.【航空】飛機(jī)航線;航向指示。 3.【天文學(xué)】幅,矢徑。 4.【生物學(xué)】帶菌者[體],傳病媒介。 vt. 【航空】(對(duì)飛行中的飛機(jī))指示航向。 vi. 【航空】電(磁)波導(dǎo)航。
Angular momentum is an axial vector quantity . 角動(dòng)量是一種軸矢量。
Isospin is a vector quantity . 同位旋是矢量。
A vector quantity is an entity with a magnitude and a direction in space . 矢量是空間中既具有大小又具有方向的量。
Two vector quantities which are equal need not have the same physical effect . 兩個(gè)相等的矢量并不一定有相同的物理效果。
A vector quantity is one whose direction as well as its magnitude is significant . 矢量是一個(gè)其方向和其大小同樣有意義的量。
A vector quantity whose magnitude is a body ' s speed and whose direction is the body ' s direction of motion 速度一種向量,其量值為物體的速率,其方向?yàn)槲矬w運(yùn)動(dòng)的方向
3 . use characteristic vector quantity of normal situation with leak characteristic vector quantity of situation compare , adopting valve method determinant the leakage of pipelines 本文應(yīng)用正常情況下的特征向量與泄漏情況的特征向量進(jìn)行比較,并且采用閥值的方法判斷泄漏故障的發(fā)生。
It synthesizes the excellence of wave coding and parameter coding , adopts vector quantity , analyse - synthesize , perceptual weighting , therefore , gains good speech coding quality at 8kbit / s . cs - acelp can be used in individual telecom , iphone , c / n , microwave telecom and isdn Cs - acelp算法綜合了波形編碼和參數(shù)編碼的優(yōu)點(diǎn),以自適應(yīng)預(yù)測(cè)編碼技術(shù)為基礎(chǔ),采用了矢量量化、合成分析和感覺(jué)加權(quán)等技術(shù),在8kbit / s速率上獲得了較高的語(yǔ)音編碼質(zhì)量。
Compared with the pressure hydrophone , vector transducer can provide both the information about pressure ( scalar quantity ) and particle velocity ( vector quantity ) of the sound field , which offers more possibilities for signal processing . so vector transducer and its signal processing have attracted the attention of researchers both native and foreign . in this thesis , a method of correlation equations for pressure gradient transducer is presented , and the estimation of multi - signal parameters with single vector transducer is given 與傳統(tǒng)的聲壓水聽(tīng)器相比,矢量水聽(tīng)器既能獲得聲場(chǎng)中的聲壓這一標(biāo)量信息,又能獲得聲場(chǎng)中質(zhì)點(diǎn)振速這一矢量信息,這為其信號(hào)處理帶來(lái)更大的空間,因此矢量水聽(tīng)器及其相應(yīng)的聯(lián)合信息處理技術(shù)日益成為國(guó)內(nèi)外科技工作者們研究的熱點(diǎn)。