propagation direction中文什么意思

direction: n. 1.方位，方向；范圍，方面。 2.〔pl.〕指揮 ...
direction of propagation: 傳播方向
direction of wave propagation: 波傳播方向; 波浪行進(jìn)方向
propagation: 持續(xù)培養(yǎng); 傳播，宣傳; 傳播；繁殖；生長(zhǎng); 傳波; 第八章繁殖技術(shù); 繁殖；傳送; 廣傳; 擴(kuò)散; 樂(lè)殖; 散括; 增長(zhǎng); 增生; 增殖
direction: n. 1.方位，方向；范圍，方面。 2.〔pl.〕指揮，指導(dǎo)；管理。 3.〔常 pl.〕指示，命令，吩咐；用法說(shuō)明。 4.導(dǎo)演；(樂(lè)隊(duì))指揮。 5.寄發(fā)地址。 6.趨向，傾向。 Full directions inside. 內(nèi)有詳細(xì)說(shuō)明。 direction finder [detector] 【無(wú)線電】測(cè)向儀。 direction finding 定向。 direction finding station 無(wú)線電測(cè)向站。 direction for use 用法說(shuō)明。 in all directions 四面八方，各方面。 (reforms) in many directions 各方面的(改革)。 in the direction of 向…方面。 take a new direction 有新傾向。 under the direction of 在…指導(dǎo)下。

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Based on the relationship between elastic constants and sound velocities in composite material and measuring very few velocities of different propagation direction , the elastic constant matrix can be calculated out
依據(jù)復(fù)合材料中聲波速度與材料彈性常數(shù)之間的本構(gòu)關(guān)系，測(cè)量不同傳播方向的少數(shù)幾個(gè)聲速，就可以得到其彈性常數(shù)矩陣。
By using bpm , the problem is reduced from a second - order boundary value problem requiring iteration or eigenvalue analysis to a first - order initial - value problem that can be solved by simple " integration " along the propagation direction
和其他模擬方法相比， bpm將二階邊值問(wèn)題簡(jiǎn)化為一階初值問(wèn)題，減小了計(jì)算的復(fù)雜性，縮短了計(jì)算時(shí)間，降低了對(duì)計(jì)算機(jī)硬件的要求。
When pure shear wave propagate in anisotropy media , even thought propagation direction is parallel to the direction of aligned cracks , experimental results exhibit that only two kinds of shear - wave velocity can be measured - fast shear wave and slow shear wave neglecting polarization direction
這個(gè)實(shí)驗(yàn)結(jié)果進(jìn)一步表明，純橫波在各向異性介質(zhì)傳播時(shí)，即橫波的傳播方向與裂隙平行，無(wú)論橫波的偏振怎樣改變，只能觀測(cè)到兩種橫波速度，快橫波和慢橫波。

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