The influence of free surface on tunnels is discussed.The influence of blasting vibration on fresh concrete lining is studied. The finite element method is employed to analyze the spatial distribution of temperature and thermal stress of fresh concrete lining, the wave function expansion method is used to study the interaction of blasting seismic wave and the circular tunnel with lining, thenthe safe PPV of fresh concrete lining with different age is decided by taking into account the thermal stress of concrete lining. Using the conformal mapping method, the influence of blasting vibration on the arch tunnel with lining is studied and the safe PPV of concrete lining is deduced under different incident angle.

研究了爆破振動對新澆混凝土襯砌的影響国产乱弄视频，采用有限元法求出了圓形洞室新澆混凝土襯砌內(nèi)溫度和溫度應(yīng)力在空間上的分布及其隨時間的變化，采用波函數(shù)展開法求解了爆破地震波與有襯砌圓形洞室的相互作用A片在线视频兔费观着网址，獲得了考慮新澆混凝土襯砌內(nèi)溫度應(yīng)力前提下不同齡期的新澆混凝土襯砌的安全振速国产日韩欧美色综合；利用保角變換研究了爆破振動對直墻拱形有襯砌隧洞的影響，得到了爆破地震波以不同角度入射時混凝土襯砌的安全振速360毛片视频AA。

The effects of all kinds of experimental conditions in clarifying Jingangteng extract by ultrafiltrating were studied, the cleanout method of membrane was preliminary studied.

研究了超濾膜分離技術(shù)澄清金剛藤水提液時各實驗條件的影響三级黄色片超碰免费在线观看，初步探討了膜清洗情況。

Shortly afterward , Clothier studied Architecture at the University of British Columbia , and then moved to England where he studied theatre .

研究建筑在不列顛哥倫比亞大學(xué)男女猛烈无遮挡羞羞视频，然后搬到英格蘭色呦呦av电影，他研究劇院舉行。

Based on these facts, the properties of films regenerated from new aq. alkali soluble cellulose/NaOH solution with sulfuric acid as coagulator were studied. The structure and morphology of the film was characterized by SEM, and also the influence of coagulator concentration on the film property was studied.

在此基礎(chǔ)上日韩在线主播福利影院AV，對新型堿可溶纖維素/NaOH水溶液體系在以硫酸水溶液為凝固劑時所成膜的性能進行了研究97久久超碰中文字幕潮喷直播，采用SEM電鏡對膜的結(jié)構(gòu)與形態(tài)進行了分析表征，研究了凝固劑濃度對膜性能的影響亚洲图库日韩在线专区。

The mixed sown pasture of white clover and cocksfoot, which was the most typical grassland type on the Yun-Gui plateau, and the ideal beef cattle varieties such as shorthorn and cross-bred breed cattle by three components , which were adapted to be raised and grazed on the pasture in the south of China were studied as follows: Firstly, the basic data regarding pasture production, beef cattle production, grazing management and running management inside and outside of China were collected in flocks on the basis of collectivity optimization for beef cattle grazing system on sown pasture and a whole set of system of indicator management for beef cattle production had been studied on the whole aspects in order to manage every factor affecting on grazing system in fix quantity.

在對人工草地肉牛放牧系統(tǒng)進行總體優(yōu)化的基礎(chǔ)上人妻中文字幕系列无码专区，收集大量國內(nèi)外有關(guān)牧草生產(chǎn)、肉牛生產(chǎn)玖玖资源站在线中文字幕、放牧管理和經(jīng)營管理等方面的大量基礎(chǔ)資料18岁进入网站免费看，從系統(tǒng)角度研究出一套完整的肉牛生產(chǎn)的指標(biāo)管理體系，以對影響放牧系統(tǒng)的各個因素進行定量化管理五月日日操；2免费看黄片男人玩女人逼黄片。

As a result, atmospheric decomposition of natural gas hydrate under different temperatures (from -5 ℃ to -25 ℃) is studied through forming natural gas hydrate by using the solution of 300 mg/L sodium codicil sulfate and hydrate reactor with the compaction function is designed and made in which atmospheric decomposition under different temperatures （-10 ℃,-15 ℃ and -20 ℃） is studied after compacted at 10 MPa.

為此，用300 mg/L的十二烷基硫酸鈉溶液生成天然氣水合物性生活黄色视频欧美，試驗研究天然氣水合物在不同溫度（-5~-25 ℃）下的常壓分解欧美肥妇午夜视频；設(shè)計制造了帶壓實功能的水合物反應(yīng)釜，試驗研究用10 MPa壓力對水合物進行壓實后在不同溫度（-10 ℃图片区小说区中文、-15 ℃和-20 ℃）下的常壓分解美洲性爱视频。

The self-mixing effect of laser diode including the self-mixing model, the problem offeedback coefficient, measure principle was studied. The characteristic of theVCSELs seismic acquisition system was studied by experiments.

討論LD自混合效應(yīng)的原理，包括自混合的模型www.色色网站、反饋系數(shù)問題和測量原理欧美做受又硬又粗又大视频；之后討論了VCSELs的調(diào)制特性，通過實驗研究了VCSELs地震波測量系統(tǒng)的特性三级在线視頻。

I had been studied Photoelectric Colorimeter during my studied in college period, because I had economical and material support by my father's radio factory.

1： 大學(xué)時代曾研究過化驗室用的光電比色的儀器欧美AAAA片中文字幕，當(dāng)時父親的無綫電廠還存在，所以有經(jīng)濟和物力的支援天天三级视频。

The suitable synthesis conditions of those new products have been studied. The structures of them are affirmed by IR spectroscopy, 1~H NMR,(13)~C NMR and Elemental Analysis;the configurations of them are also analyzed by theoretical calculation of quantum chemistry. Influences of the length of hydrophobic group, the degree of substitution on the solubility, surface activity, emulsifying property, foam property, hygroscopicity and humidity-retaining ability, compatibleness of those new products have been studied in detail.

探討了各反應(yīng)產(chǎn)物的適宜合成條件欧美日韩免费精品一，并利用紅外吸收光譜、1~H一级乱伦黄片、(13~C核磁共振国产视频不卡在线、元素分析等儀器分析手段和量子化學(xué)從頭算STO-3G對所得產(chǎn)物的結(jié)構(gòu)進行了表征亚洲性爱中文字幕视频；同時較詳細(xì)地研究了疏水基碳鏈長度、反應(yīng)取代度對合成產(chǎn)物的溶解性国产用力CAO视频、表面活性在线免费A片黄片、乳化性、泡沫性国产一级AV免费、吸濕保濕性和配伍性等物化性質(zhì)和應(yīng)用性能的影響規(guī)律一女被多少做做免费在线观看。

In this research, swainsonine contents of three Oxytropis species were determined by the high performance liquid chromatography coupled to mass spectrometry. The population genetic diversity was also studied and the swainsonine related molecular markers were screened by ISSR. In vitro fungi cultures from the individual plant of O. glabra were performed and microbiological morphology of the colony and the conidiophore were investigated. The 5.8S rDNA/ITS sequences of fungi amplified from total DNA in both plants and fungal endophytes were studied. These sequences were analysed and compared, and they were also compared to the 5.8S rDNA/ITS sequence of fungal enduphyte Embellisia sp. L12 from the O.lambertii, O.sericea and A.mollisimus distributed in USA.

本研究采用高效液相色譜-質(zhì)譜聯(lián)用法測定了三種棘豆植物的苦馬豆素含量；通過ISSR分子標(biāo)記技術(shù)對三種棘豆種群遺傳多樣性及其苦馬豆素相關(guān)標(biāo)記進行了研究欧美一级片在线免费观看网站；將小花棘豆植物單株進行體外真菌培養(yǎng)，研究了菌落和分生孢子的微生物形態(tài)學(xué)特性综合欧美在线，從植物總DNA和相同植株培養(yǎng)的真菌總DNA擴增真菌的5.8SrDNA/ITS區(qū)黄网你懂的，進行了DNA序列分析與排序；聯(lián)系單株小花棘豆的苦馬豆素含量測定和內(nèi)生真菌ITS序列分析結(jié)果久久精品福利第一区，與從美國分布的二種棘豆(O.lambertii国产精品盗摄一区、O.sericea)和一種黃芪(A.mollisimus)中分離的內(nèi)生真菌埃里磚格孢屬Embellisia sp.L12株得到的結(jié)果進行了比較。