structure n. 1.構(gòu)造,結(jié)構(gòu);組織;石理,石紋。 2.建造物。 ...
branch n. 1.(樹)枝〔泛指大枝或小枝;bough 特指大枝,也指連花、果折下的枝;limb 指大枝;twig 指小枝〕。 2.支脈;支派;支管;支線;(家族的)支系;【語言學(xué)】(語系的)支,族。 3.(學(xué)科)分科;部門,支部,分部,分行;分店。 4.〔美國〕支流,小河,小川。 5.【電學(xué)】分流;【計(jì)算機(jī)】轉(zhuǎn)移。 the branchs of a deer's antelers 鹿角的岔枝。 branch road 岔道。 the various branches of learning 各門學(xué)科。 the executive branch of the government 政府的行政部門。 an overseas branch 海外分店。 the Germanic branch of the Indo-European language family 印歐語系的日耳曼語族。 a party branch 黨支部。 root and branch 徹底的[地]。 vi. 1.(樹)出枝,開叉。 2.分部,分門;分岔;分支。 The main road branches off to the left. 大道向左分出一條岔路。 Numerous lesser roads branched off from the main highway. 從主要公路上分出無數(shù)小道。 vt. 1.使分枝。 2.用枝、葉、花等圖案裝飾(織物)。 branch forth (樹)擴(kuò)展枝葉;(商店等)擴(kuò)展分支機(jī)構(gòu)。 branch off [away] (道路等)分叉,岔開。 branch out 1. (樹)發(fā)枝,長出枝條;(話等)橫生枝節(jié)。 2. (事業(yè)等)擴(kuò)大規(guī)模。 His firm branched out to New York. 他的公司把分支機(jī)構(gòu)擴(kuò)大到了紐約。
Control branch structure review and other special assignments 管制部架構(gòu)檢討及其他特別職務(wù)
The higher education branch structure and development prediction of yunnan province 云南省高等教育分科結(jié)構(gòu)及發(fā)展預(yù)測
Glycogen a polysaccharide composed of many glucose units , with a branching structure similar to that of amylopectin 糖原:是一種由多個(gè)葡萄糖單位組成的多糖,與支鏈淀粉有著相似的分支結(jié)構(gòu)。
The thesis gives a simulation result of s - shape y - branch structure with numerical computation software and it also meets the demand 本文結(jié)合已有的軟件對s彎曲結(jié)構(gòu)進(jìn)行了分析模擬,也得到了達(dá)到性能指標(biāo)的分析結(jié)果。
According to the economic structure , structural change of the operational style of fdi " s utilization is expressed as well as its industrial and branch structures in china 利用外資的經(jīng)濟(jì)結(jié)構(gòu)分為利用外商直接投資經(jīng)營方式的結(jié)構(gòu)變化、外資在中國投資的產(chǎn)業(yè)結(jié)構(gòu)和部門結(jié)構(gòu)兩部分。
In developing the planar lightwave circuits , the coupling loss between a waveguide with a high refractive index difference and a single mode fiber is considered . a novel spot - size converter based on a y - branch structure is proposed and numerical simulation results indicate that it can reduce the coupling loss effectively with low polarization dependent loss and good fabrication tolerance 在平面波導(dǎo)光器件研制中,提出了高折射率差二氧化硅波導(dǎo)與光纖的新型低損耗連接,與現(xiàn)有波導(dǎo)單側(cè)變窄的結(jié)構(gòu)相比較,有效的降低了連接損耗,同時(shí)具有偏振相關(guān)損耗低,工藝容差性好的優(yōu)點(diǎn)。
Applying an exact modal propagation analysis method and self - imaging theory , i analyzed the principle of mmi coupler . then , the self - imaging effect in graded - index waveguide has been analyzed and simulated using three - dimensional bpm . considering normal technology error , a low loss y - branch structure ( symmetric or asymmetric ) with a multimode waveguide transition section is introduced and designed 在設(shè)計(jì)y分支波導(dǎo)結(jié)構(gòu)時(shí),考慮常規(guī)工藝誤差的影響,引入多模波導(dǎo)作為y分支波導(dǎo)結(jié)構(gòu)的過渡區(qū),利用參數(shù)空間搜索法來設(shè)計(jì)結(jié)構(gòu)參數(shù),實(shí)現(xiàn)低損耗的y分支結(jié)構(gòu)。
The numerical and experimental results of this y - branch structure indicate that the proposed y - branch structure , without extra fabrication technologies , has a lower excess loss as compared with the conventional ones . optimal designs of the structural parameters for the multimode interference coupler are carried out . low loss and high uniformity of the multimode interference couplers are achieved when the waveguide is weakly guiding 研究了y分支耦合器中分支頂端間距(為工藝制作方便)帶來的附加損耗,提出了低損耗新型y分支耦合器結(jié)構(gòu),并給出了相關(guān)結(jié)構(gòu)參數(shù)的優(yōu)化設(shè)計(jì)方法,我們的理論計(jì)算和實(shí)驗(yàn)測試結(jié)果均表明,該新型結(jié)構(gòu)可以在常規(guī)光波導(dǎo)制作工藝下提高器件的指標(biāo)。