In order to calculate the crack expansion life in the action of variable amplitude load for the metal bar with V-shaped notch, the formula of bar fracture frequency was obtained theoretically by setting a size of bar fracture region applied in the engineering. Based on it, the mathematic expression of crack expansion life of bar V-shapednotch tip in the action of variable amplitude load was built.

針對(duì)金屬棒料在變幅載荷作用下需要較精確地獲取其V形槽尖端裂紋擴(kuò)展壽命的問(wèn)題亚洲不卡无码精品一区二区，通過(guò)給定一個(gè)工程上能接受的瞬斷區(qū)尺寸麻豆国产原创福利，獲得了棒料斷裂頻率的計(jì)算公式，在此基礎(chǔ)上国产999国内精品视频免费，建立了變幅載荷作用下棒料V形槽尖端裂紋擴(kuò)展壽命的數(shù)學(xué)表達(dá)式欧美三级电影限制黄色福利视频。

In this paper we have point out the error of principle formula quoted by all literatures at home and abroad to measure the refractive angle and the method of V-prism, derive from beginning the right formula of measuring refractive index by the method of minimum deviation angle and the method of V-prism.

本文指出了測(cè)量光學(xué)材料折射率的最小偏向角法和V棱鏡法國(guó)內(nèi)外所有文獻(xiàn)的原理公式誤差，重新推導(dǎo)了最小偏向角法和V棱鏡法測(cè)量折射率的正確公式亚洲国产色图视频∨粤狄磺基于最小偏向角法用精密測(cè)角僅可以獲得±3×10-6的折射率的測(cè)量精度，然而www.九九久久，這些文獻(xiàn)沿用經(jīng)典的測(cè)量原理公式卻具有-4×10－4數(shù)量級(jí)的原理公式誤差有码一区，因此導(dǎo)致錯(cuò)誤的測(cè)量結(jié)果。

A novel V-shaped slot antenna with a small right-angle triangle of supplementary slot is presented. The slot clement is fed by an arrow-shaped terminal of a microstrip line printed on the other side of substrate, and its good impedance matching is achieved by adjusting the area of this triangular supplementary slot.

提出了一種新穎的V形微帶縫隙天線亚洲综合一区二区精品久久，地板上開(kāi)一個(gè)直角V形縫隙久久久999国产，在V形縫隙的頂角處附加一個(gè)小直角三角形補(bǔ)償隙，通過(guò)改變?nèi)切窝a(bǔ)償隙面積的大小可以對(duì)天線阻抗匹配進(jìn)行優(yōu)化四虎成人入口在线观看视频网站免费，由基片另一側(cè)的箭形微帶線終端對(duì)縫隙單元饋電成人网站香草视频在线观看免费下载。

Benzene-acetone (4:1,V/V)was used as developing agent to soparate amidopyrine and barbitone from the compound amidopyrine injection solution on the silica G plate,and Dual wave thin-layer chromatographic densitometry was used to determine amidopyrine (λ_s = 270nm,λ_R=340nm)and barbitone (λ_x=205nm,λ_R=320nm).

以苯-丙酮(4：1，V/V)為展開(kāi)劑欧美黄色网站有哪些，在薄層硅膠板上將復(fù)方氨基比林注射液中的氨基比林和巴比妥分離后1级黄片免费看，通過(guò)雙波長(zhǎng)掃描測(cè)出氨基比林(λ_s=270nm，λ_R=300nm)和巴比妥(λ_s=205nm批女人精品国产，λ_R=320nm)的含量

In Chapter 4,further theoretical study on UWB biconical antenna and V-coni-cal antenna is presented.The theory of biconical and V-conical antenna with ellipticcross section is developed in the sphro-cone coordinate system under the assump-tion of TEM mode.

第四章研究UWB/SP的輻射天線情黄网站，對(duì)雙錐天線及V—錐天線在理論上作更進(jìn)一步的研究，發(fā)展了無(wú)窮長(zhǎng)雙橢圓錐天線的理論提出了一種新天線結(jié)構(gòu)形式-V橢圓錐天線女同一区二区三区在线观看。

The separation and determination of caproic acid,1-octanol and octyl caproate by high performance liquid chromatography on the Kromasil C18(150 mm×4.60 mm,5 μm) column with V∶V=95∶5 as mobile phase and with refractive index detector were also studied.

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By the analysis of coal two-step extract by FTIR and comparison of extraction rate, we can see the two-step extraction with combination of cyclohexanone and CS〓-NMP (1: 1, v/v) has higher extraction rate as to coal of different degree of coalification.

4環(huán)己酮和CS〓－MP（1：1性生活黄色网站，v/v）復(fù)合溶劑的兩步抽提對(duì)不同煤化程度的各煤種均保持了較大的抽提率亚洲制服丝袜欧美漏出偷窥，基本達(dá)到對(duì)不同煤種的可溶化要求。

I shall deal under the heading of the second codicil with the scope of the rule to be found in Barry v Butlin and Wintle v Nye .

本席將在第二份遺囑修訂件一欄處理在 Barry v Bultin 和 Wintle v Nye 所論關(guān)于這項(xiàng)規(guī)則范圍A片视频网站免费观看。

Recently,the company invested 3 million RMB yuan to make innovation on V belt production.It bought 20 press valcanizers,10 valcanizing tanks,some V belt string winding machines and V belt life examiners.All this helps its production technology to reach the top class of the world,the capacity for V belt has increased to 30,000,000 Am/year.

近年來(lái)国产精品盗摄!偷窥盗摄，公司投資三百萬(wàn)元，進(jìn)行了三角帶技術(shù)改造外国一级黄色网站，購(gòu)進(jìn)安裝20臺(tái)平板新型硫化機(jī)一级A爱视频免费看、新上了10個(gè)膠套硫化罐及V帶線繩纏繞機(jī)、三角帶疲勞壽命實(shí)驗(yàn)機(jī)等国国内自拍A片免费观看，使該產(chǎn)品在工藝18禁漫画网站、設(shè)備、質(zhì)量上均達(dá)到國(guó)內(nèi)領(lǐng)先水平国产黄片精品a片3p，目前已形成3000萬(wàn)A米的生產(chǎn)能力欧美巨屌性爱。