化鈮 的英文怎麼說
中文拼音 [huàní]-
The waves should be sheared waves for the anisotropic aeo device and longitudinal waves for the isotropic aeo device. geometrical relationships of anisotropic acousto - optic effect in ln crystal and kdp crystals are studied by tangent - match condition. curves of incident angle vs. abaxial angle, diffractive angle vs. abaxial angle, extreme frequency vs. abaxial angle and acousto - optic merit vs. incident angle vs. abaxial angle are systematically gained and the design parameters are also calculated
利用相切-匹配條件法研究了鈮酸鋰晶體及kdp晶體的反常聲光互作用幾何關系，系統地得到了以離軸角為自變量的各參數的計算公式及相應的關系曲線，通過數值分析方法給出了聲光優值隨中心頻率的變化曲線並給出了器件的設計參數。Standard specification for precipitation - strengthened low - carbon nickel - copper - chromium - molybdenum - columbium alloy structural steel plates
沉澱硬化低碳鎳-銅-鉻-鉬-鈮合金結構鋼板的標準規范Standard specification for pressure vessel plates, low - carbon age - hardening nickel - copper - chromium - molybdenum - columbium and nickel - copper - manganese - molybdenum - columbium alloy steel
壓力容器用低碳時效硬化的鎳銅鉻鉬鈮和鎳銅錳鉬鈮合金鋼板的標準規范Study of intensive decomposition technique of titanium - columbite - tantalite ore
鈦鉭鈮礦強化分解工藝的研究The compositions of usual elements and rare earth elements and inclusions of corundum megacrysts related to alkali basalt in changle, shandong province, are analyzed. in the main parts of corundum megacrysts are a large number of fluid - melting inclusions, zircon, ta - columbite inclusions, and in the central crystal core are a large number of melting inclusions. the corundum megacrysts were formed in different periods and different physical chemistry conditions. the crystal core was formed in magma system, and the main parts were formed in inhomogeneously geochemical conditions in which magam and fluid phases coexisted
分析山東昌樂與堿性玄武巖有關的剛玉巨晶不同部位的常量元素、稀土元素及包裹體組成.剛玉巨晶的主體以大量流體?熔體包裹體、鋯石、鈮（鉭）鐵礦包裹體為主，而巨晶中的「晶核」部位則以大量的熔體包裹體為主，反映研究區的剛玉巨晶是在不同的階段形成的.剛玉「晶核」以及「銅皮剛玉」形成於熔體相為主的體系中，而主體剛玉則形成於熔體?流體過渡的急劇變化的不均一的地球化學環境中Catalytic spectrophotometric determination of ir by decolorizing reation with ir - kio4 - chlorophosphonazo - pn
催化光度法測定痕量鈮Using niobic acid as catalyst, cyclohexane as dehydrant, benzyl propionate was synthesized based on propionic acid and benzyl alcohol
摘要以鈮作催化劑，環己烷為帶水劑，用丙酸和苯甲醇直接合成了丙酸芐酯。Methods for chemical analysis of tantalum and niobium ores - determination of niobium content - preconcentration and separation with silica gel - thiocyanate extraction photometric method
鉭礦石鈮礦石化學分析方法硅膠富集分離-硫氰酸鹽萃取光度法測定鉭量Methods for chemical analysis of tantalum and niobium ores - determination of tantalum content - preconcentration and separation with silica gel - butyl rhodamine b extraction photometric method
鉭礦石鈮礦石化學分析方法硅膠富集分離-丁基羅丹明b萃取光度法測定鉭量Affiliated to our company, there are 2 branch companies craft factory and 1 computer server co - location center. rare refractory metal manufacturing company : company unit production equipments including the four high mills introduced from russia, home - made duo mill and narrowband mill, 400kg pneumatic hammer, punch, grinder and lathe, etc. ; a foot set of complete flow has been formed from the processing of product cog to finished product
公司下設4個分公司：星元稀有難溶金屬加工有限責任公司，是以生產鎢鉬鉭鋯鈮鈦鎳等難熔金屬材料及其製品為主的規模企業晨光印務有限責任公司，是集鋁箔袋高溫蒸煮袋抽真空袋及各類食品包裝袋的設計製作印刷覆膜等專業化生產企業。Nanotubes have a narrow size distribution which dismeter is about 30nm with several analysis methods such as hrtem, eels, xrd, saed and so on the nanotubes " structure was characterized which can be regards as k ^ nbeon structure. according to the saed pattern, the axis of nanotubes can be determined which is along the crystal direction [ 100 ]
鈮酸鉀是一種的具有光催化功能的材料，光催化的效果與催化劑的比表面積有很大關系，納米管的一個顯著特點就是與粒狀結構的材料相比，它具有大的比表面積，從理論上講它應該比鈮酸鉀顆粒具有更好的催化效果。Nonm is one of the state - grade key hi - tech enterprises, an executive member company of tantalum - niobium international study center ( tic ), also one of the world three top tantalum processors
擁有國家鉭鈮特種金屬材料工程技術研究中心、國家級企業技術中心、博士后科研工作站、國家863產業化基地。This thesis focuses the research on the theory and application of the electro - optic effect in the quasi - phase - matching ( qpm ) nonlinear optics based on periodically poled lithium niobate ( ppln )
本文旨在對電光效應基於周期性極化鈮酸鋰（ ppln ）的準位相匹配（ qpm ）非線性光學中的理論及其應用進行研究。The manufacture and application of periodically poled lithium niobate
周期極化鈮酸鋰製作與應用Comparison of two dominant periodically poled lithium niobate fabrication methods
周期性極化鈮酸鋰兩種主要制備方法的比較Production of ultra - pure tantalum oxide ultra - pure niobium oxide from ch3 5chohch3 - hf - h2so4 system
4體系制取超高純氧化鉭和超高純氧化鈮The amount of nb3si / nb5si3 increases, their morphology tends to be more regular, their distribution becomes more homogeneously with the increasing of withdrawing rate. the microstructure is better oriented along the longitudinal axis of the samples when the withdrawing rate is between 0. 6 and 6. 0mm / min. at the same withdrawing rate, the microstructure changes from the beginning part to the ending part of the samples
鈮?硅基rmics材料原始鑄態組織由初生nb基固溶體和在其間分佈的nb基固溶體+硅化鈮共晶團組成；隨著抽拉速率的增大，定向凝固共晶組織中硅化鈮強化相細化、數量增多、分佈趨于規則和均勻，定向效果顯著；在相同抽拉速率條件下，區熔試樣的組織從起始段到終止段發生了改變。The cracks extend along the matrix / strengthening - phases interfaces and form the cleavage steps and tear ridges. there appear some very small dimples on the fracture surfaces of the directionally solidified samples, which come from the nb - based solid solution particles in the big plates of the strengthening phases, but no dimples on the fracture surfaces of the as - cast sample. it can be concluded from above results that niobium - niobium silicide based in - situ composites ( rmics ) with a uniformly orientated microstructure can be produced by the ebfzm with high temperature gradient, and their mechanical properties can be increased
隨著抽拉速率的提高和硅化鈮強化相間距與尺度的減小，材料的室溫拉伸強度和斷裂韌性均有提高， _ b最高可達778 . 4mpa ， k _ （ ic ）達到了46 . 3mpa ? m ~ （ 1 / 2 ） ；試樣的拉伸斷口基本表現為脆性解理斷裂的花樣，裂紋沿基體強化相界面繞過強化相進行擴展，在裂紋擴展方向存在解理臺階，並形成撕裂棱。First, the tunability of optical parametric oscillater ( opo ) in ppln was analyzed
本文首先對周期性極化鈮酸鋰的光參量振蕩（ opo ）調諧特性作了分析。In the last chapter, a novel method of optical voltage sensing based on second harmonic generation in periodically poled linb03 is proposed
本文最後一部分，從光學電壓傳感器的原理出發，在周期性極化鈮酸晶體倍頻效應基礎上，提出了一種新的光學電壓傳感方法。分享友人