Points out that the propagational derection and vibration surface of ordinary and extraordinary ray in crystal can be determined by the characters of wave surface in crystal and Huygens,Construction.

本文研究單色自然光入射到單軸晶體后產(chǎn)生雙折射現(xiàn)象2021色色，所得的O光和e光在晶體內(nèi)的傳播方向和振動面，可利用晶體中波面的特點和惠更斯作圖法來確定黄色录像视频在线免费，使讀者對這一問題有更進一步的認識和理解久久久久久精品久久久一区。

Moreover, it can also keep the ultraviolet radiation out of rooms, which could easily penetrates ordinary thermal insulation material such as the iron sheet, the concretes, the lumber and so on. we researches and develops this product based on the combination polyethylene and aluminum foi

我集團公司研發(fā)生產(chǎn)的這種新型隔熱材料通過鋁箔材料反光、熱的特性和聚乙烯材料的結(jié)合亚洲最新h在线，使其不僅具有良好的絕緣欧美五区、熱反射、隔熱超碰人人白浆国产五十、反輻射功能97超人碰人人艹人人摸人人干，而且還通過該材料的特性在房屋建筑應(yīng)用上能起到很好防潮、保溫久久爱精品官网、節(jié)能作用这里有精品99。

In order to provide an scientific basis and technology support to local agricultural by–products export quarantine, an investigation was carried out on the species of stored insects of export agricultural by–products from 2003 to 2005 in the region. The quarantine significance of different stored insects and the insect community structure characteristics of five stored export products were analyzed, besides, a study was conducted on the ecology of Dermestes maculatus Degeer in the laboratory. The main results were as follows. 1. The ordinary and systematic measures were used to investigate stored insect species on export products, such as Willow, Brush, Feather, Leather, Woodwork, grain, coconut funicle, lotus leaf etc., in the finished product, transferring, material reserve and processing storages of the export industries.

為了給該地區(qū)農(nóng)副產(chǎn)品的出口檢疫提供科學(xué)依據(jù)和技術(shù)支持，筆者于2003-2005年對江蘇沿江地區(qū)各類出口農(nóng)副產(chǎn)品檢疫場所的倉儲昆蟲種類進行了調(diào)查久久视频在线观看，分析了各種倉儲昆蟲的檢疫重要性以及5類出口農(nóng)副產(chǎn)品倉儲昆蟲的群落特征久久精品店这里有精品，并對重要倉儲害蟲白腹皮蠹的生態(tài)學(xué)特性進行了研究，現(xiàn)將結(jié)果總結(jié)如下： 1黑人交换亚洲女人配乱吟粗大、2003-2005年通過對江蘇沿江地區(qū)的草柳藤制品、筆刷制品一级色逼影视、羽絨制品国产精品久久毛片AI换脸、皮革制品、木制品、糧飼庫存點免费一级播放特黄绿相片、椰殼纖維欧美理论片92理论午夜片、荷葉加工廠等出口企業(yè)的成品儲藏庫、中轉(zhuǎn)庫黄色视屏国产免费、原料儲備庫欧美另类69XXXXX义、加工車間等檢疫場所的昆蟲種類進行了普查和系統(tǒng)調(diào)查，共采集標本1800余件亚洲一级毛片精品网站，從中鑒定出130種倉儲動物日韩图亚洲一区，隸屬2綱、9目天堂久久人妻av、51科操操日日，其中害蟲6目、40科欧美爆乳XXXX、105種亚洲激情图，益蟲5目、10科精品无码国产污污污免费、25種刺激毛片免费视频录像；此外，還發(fā)現(xiàn)2中國新記錄種95午夜电影，即闊鼻谷象Caulophilus oryzae和黑斑豆象Bruchus dentipes免费在线黄色网站视频。

Professor Bainbridge leads the Fine Art area at Sunderland and in this work references to planets and the stars built out of huge Cast Iron spheres again draws upon traditional craft skills of the region and turns an ordinary traffic roundabout to a gateway to the town of Hartlepool.

Bainbridge 教授是森德蘭地區(qū)美術(shù)界的領(lǐng)導(dǎo)者，這部作品指涉行星和恒星97人人模人人爽人人喊免，由巨型鑄鐵球完成正在播放白嫩。制作過程中，藝術(shù)家們也是吸取這個地區(qū)傳統(tǒng)的工藝技巧国产爱V免费99一区二区，它被安放在一個普通的交通環(huán)形道黄色网站视频免费大全，從而把這個地方變成了通往 Hartlepool 的大門。

At the same time, Mr Peter Wang; as a result of recommended stocks and buy 38 shares of which ordinary investors, it is the victim of asymmetric information, can carry out a civil suit for compensation?

在同時国产激情丁香在线观看视频网站，主席彼得王九色论坛，做一個推薦的股票的結(jié)果，其中購買38股普通投資者毛片免费看视频，這是信息不對稱的受害者乱伦免费视频入口，可以進行民事賠償訴訟？

According to the result of experiments, the author point out that the high strength and high collapsibility resin coated sands used in producing the aluminum alloy castings should be:① using rounded or near rounded sand;② using ordinary PF resin;③ using some strengthening and toughening agents;④ using satiable collapse agents.

作者通過大量的試驗研究得出以下結(jié)論：用于生產(chǎn)鋁合金鑄件的高強度直接可以看中文字幕的av网址、易潰散覆膜砂應(yīng)：①選擇粒形圓整的原砂伊人久久精品婷婷热；②選用普通熱塑性酚醛樹脂；③加入一定量的增塑類添加劑久久精品国产91久久综合app；④加入適宜的潰散劑亚洲网站片。

The advertisement slogans of English advertisements sum up the traits of advertised products and services highly, stress its parts that are out of ordinary with the concise and comprehensive language forms to reach the purpose of being accepted and recognized by consumers.

在英文廣告中的廣告口號，以其言簡意賅的語言形式，高度概括了所宣傳的產(chǎn)品或服務(wù)的特點日本aa，突出其與眾不同之處免费观看中国A片,黄色视频，以達到被消費者接受、認識的目的日韩精品更新资源在线观看视频。

The advertisement slogans of English advertisements sum up the traits of advertised products and services highly, stress it s parts that are out of ordinary with the concise and comprehensive language forms to reach the purpose of being accepted and recognized by consumers.

在英文廣告中的廣告口號神马影院成人免费网站推荐视频，以其言簡意賅的語言形式，高度概括了所宣傳的產(chǎn)品或服務(wù)的特點中国免费的黄色网站，突出其與眾不同之處.国产综合网在线观看，以達到被消費者接受、認識的目的AAAAA欧美一级黄色片。

The biggest advantage of this mean is that don"t need to computer the perturbation matrix element by using zero level wave function, even don"t need to give out high rank amendatory result using infinite series to sum like the ordinary perturbation theory. Thus, it not only avoids many complicated integral operation, but also obtains high rank amendatory result that it is very difficult to get or cant get.

這種方法最大的優(yōu)點就是不需要用零級波函數(shù)來計算微擾矩陣元qvod激情图片，更不需要像普通微擾論那樣用無窮級數(shù)求和給出高階修正的結(jié)果，這樣一來先锋xfplay色资源网站123，不僅避免了許多繁復(fù)的積分運算黄色做吊逼，而且求得了普通微擾論很難得到或不可能得到的高階修正的結(jié)果。

The thesis toke problem of deformation and destroying of the earth mass as it's invention, integrated the earth mass's existing environment, ingredients and macrostructure, discovered mechanism of deforming and destroying, made clear the relationships between those.Through outdoors samples, indoors examination surface wave testing and audio wave testing ,do some research on physical, mechanical, chemical, disintegrative and dynamics property of stuff of earth mass and proposed four kinds of earth mass's stuff formed type;under the guidance of theory of dominant structural surface and adopting precision measurement of structural surface, proposed three dominant kinds of structural surface assembling;based on those , proposed four types of earth mass's deformation and destroying, carried out rationed estimation of stability on four types, then definite the characters of deforming and destroying and controlled relation between environment , stuff, macrostructure and deformation and destroying of mass earth, and breakthrough ordinary principle about soil's deformation and destroying, further proofed the theory of earth mass cybernetics's popularization

本學(xué)位論文針對臺地危險土體的變形破壞問題无码自拍日韩视频，將土體的賦存環(huán)境欧美性爱A√视频在线、土體物質(zhì)組成和土體宏觀結(jié)構(gòu)的研究緊密地結(jié)合，闡明了土體變形破壞的機制日韩偷窥自拍系列在线观看视频，明晰了土體變形破壞與土體的賦存環(huán)境五级全黄的视频在线观看、土體材料組成、土體宏觀結(jié)構(gòu)三要素之間的關(guān)系在线观看免费涩涩视频，并從土體的物質(zhì)組成的角度激情图区亚洲，以野外取樣、室內(nèi)實驗欧美一二三区视频、現(xiàn)場面波玖玖爱视频在线、聲波無損傷測試為手段，研究了土體物質(zhì)的物理日韩在线试看福利网站免费、力學(xué)pirn免费毛片在线、化學(xué)、礦物无码专区永久免费AV网站、崩解性特级毛片A片全部免费播直播、動力學(xué)性質(zhì)，提出了研究區(qū)內(nèi)土體物質(zhì)成分的四種組合形式欧美牲交a欧美牲交久久精品；以優(yōu)勢結(jié)構(gòu)面理論為指導(dǎo)1024精品久久久久久久久，以結(jié)構(gòu)面的精確測繪為手段，通過統(tǒng)計欧洲欧美黑白配黄色高清免费一级视频、歸納與分析在线观看黄片儿。，提出三種有利于臺地危險土體變形破壞的優(yōu)勢組合形式日韩另类综合福利网站在线播放视频；據(jù)此提出了具有廣泛代表意義的臺地危險土體變形破壞的四種模式亚洲丶欧美丶日韩在线一，并對其進行穩(wěn)定性評價性欧美精品一区二区三区在线播放，從而明確了危險土體的宏觀結(jié)構(gòu)對變形破壞的控制作用，映證了土體結(jié)構(gòu)控制論国产色噜噜噜在线精品蜜臀。