In the sunshine, anything attaching on the surface, including oil blotch and bacteria, as hydrocarbons, will be oxidated into gas or something easy to wipe.

其表面有一層薄納米TiO2美女午夜大片免费视频，在光的照射下，任何粘污在表面上的物質(zhì)黄色一区二区三区网站，包括油污人人摸人人操589、細菌，由于納米TiO2的催化作用精品乱伦，使這些碳氫化合物進一步氧化變成氣體或者很容易被擦掉的物質(zhì)91P0RN专干大屁股。

Special solutions for the ring circular domain with crack surfaces acted on uniform compressive force, linear compressive force and linear shearing force are deduced in polar coordinate employed the eigenfunction expansion technique in the Hamiltonian system of elastic mechanics. Combined with the general solution for the above problems, the analytical solutions for crack tip fields with surfaces acted on the above three kinds of loads are obtained. These solutions offer theoretical basis to construct analytical elements for plastic analysis of crack.

從彈性力學哈密頓體系理論出發(fā)，利用平面彈性力學極坐標系下的本征向量展開求解国产产精品亚洲一区二区在线观看，推導了環(huán)形圓形域裂紋邊作用有均布壓力欧美性交网、線性壓力和均布剪切力情況下的特解，從而得到了裂紋表面作用有以上三種荷載情況下的裂紋尖端場的解析解肏美女女生视频网站，為進一步構造進行彈塑性裂紋分析的奇異解析元奠定了理論基礎先锋影音av鲁色资源站。

The results show that, when the electromagnetic field was applicated, the flowability and filling capacity of cupronickel alloy are increased, the surface cracks are eliminated, and the thin-walled cupronickel tube billets with smooth surface can be obtained due to the increase of flowability and filling capacity of cupronickel alloy. The solidification structure of the tube billets is evidently refined, the shape of Ni-rich phase changes from needle-like to bulk and the casting stress declines from 7.2 to 0.32 MPa. With the structure improving, the tensile strength and elongation increase by 5% and 36%, respectively, than those of ordinary continuously cast tube billets.

結果表明：在連鑄過程中施加旋轉電磁場能夠提高金屬液的流動性和充型能力爱爱午夜福利视频，消除表面裂紋缺陷，從而制備出表面光滑的薄壁白銅管坯求个国产av网站；在電磁力的作用下管坯凝固組織顯著細化欧美日韩免费在线不卡视频，富鎳相由針狀轉化為團塊狀，同時鑄造應力由未施加電磁場時的7.2 MPa下降至0.32 MPa国产精品综合第三页；隨著凝固組織的改善黄色视频网址入口，施加磁場的管坯抗拉強度和伸長率與未施加磁場管坯的相比分別提高5%和36%。

Under the high frequency vibrating action, the crystal grain formed on the surface of the crystal nucleus eradiation equipment would be broken and peeled off, thereby ejected to zinc molten pool continuously and served as crystal nucleus source of equiaxed grain during solidification.

結果表明精精国产XXXX视频在线直播1，當一種帶有冷卻結構且進行高頻振動的晶核發(fā)射器插入鋅液內(nèi)時狼友视频在线观，鋅液在晶核發(fā)射器表面迅速形核且長大，在高頻振動作用下表面形成的晶粒將被折斷剝離欧美一级片在线视频网站，從而連續(xù)不斷地彈射到鋅液中视频一区国内自拍，成為凝固過程中形成大量等軸晶的晶核來源；采用帶有水冷和氣冷結構的晶核發(fā)射器對鋅液進行振動激發(fā)形核處理后欧美男女一级黄色视频，鋅凝固組織中的等軸晶率可分別提高到65%和80%超碰在线公开无码。

Fuse tartar therapy:The tooth gold biotechnology product that contains a natural plant through to lift to do has no chemistry additive, just like flavor, don't need into appetite absorption, brush teeth to gargle and then can see obvious effect just after needing through contain, use in brief, safety Gao, belong to have no pain go to stone, principle be pass to refine from the plant but of essence composition, reaction happen with tartar this kind of chemistry derivatives, thus attain thorough gum fuse tartar of effect, the tooth stone calculus sheds off to recover the sheen that tooth surface originally possessed, passing to brush teeth will have been already fused of gums bottom the tartar clean up, after return can plus the 1 F protection film in the tooth surface, make the tartar no longer easily re- adhered to.

溶解牙石療法：通過口含天然植物提練的牙齒黃金生物科技產(chǎn)品，無任何化學添加劑人人操人人高潮，無異味成熟女人国产对白视频，無需進入腸胃吸收，只需要通過口含后刷牙漱口就可以看到明顯效果又粗又大又爽，使用簡單精品高潮一区二区在线观看，安全性高，屬于無痛去石国产日韩欧美专区，原理就是通過從植物中提煉而出的精華成份国产二级黄片视频，跟牙石這種化學衍生物發(fā)生反應，從而達到深入牙齦溶解牙石的功效国产精品口爆一区二区，牙結石脫落恢復牙齒表面原有的光澤好看的欧美一级A片，通過刷牙可將已溶解的齦下牙石清理出來，之后還能在牙齒表面加上一層保護膜欧美变态另类熟妇第一区，讓牙石不再容易重新附著欧日美韩中文字幕。

The numerical results show that, surface temperature gradient in the pool heated from inner wall is 10% higher than that heated from outer wall with a fixed temperature difference between the outer and inner walls. Meanwhile, the critical Marangoni number for the incipience of hydrothermal wave (Ma_{c}=3.06\times 10^{5}) in the pool heated from inner wall is smaller than that (Ma_{c}=3.34\times 10^{5}) heated from outer wall.

發(fā)現(xiàn)在內(nèi)外壁間溫差相同的情況下，在內(nèi)壁加熱的液層里www.日日干.com，流體表面的溫度梯度高于外壁加熱情況下10%左右69天堂网；相應地，發(fā)生熱流體波的臨界Marangoni 數(shù)Ma_{c}=3.06\times 10^{5}(或臨界溫差\Delta T_{c}=4.58K)低于外壁加熱情況下的Ma_{c}=3.34\times 10^{5}(或\Delta T_{c}=5.0K)百度搜(人人肉人人摸人人操)。

Main contents and conclusions are: 1 The ionization current was measured continuously by a charge-integration method with a computer after the introduction of radon into the chamber.

主要內(nèi)容及結論：1充氡后利用計算機連續(xù)進行電離電流累積測量国产一区免费观在线18，得到了精細的電流隨時間的變化曲線，可清楚看出氡及其子體的生成衰變造成的電離電流的生長—穩(wěn)定—衰減過程91精品免费视频福利，與理論計算值進行了比較国产欧美日韩高清乱码，由電離電流衰減速度的變化得出氡吸附作用的影響日逼,一级黄色A级片,APP在看的，并測量到電離室沖洗后氡的反擴散現(xiàn)象；2由已知活度的標準源定出相對測量的刻度系數(shù)K值亚洲中文久久久久久精品国产麻豆，K=24.62 Bq／pA国产无码高清黄，對同一個監(jiān)測源以半年為周期進行多次測量后得出穩(wěn)定性符合要求；3通過測量電離電流和氣壓的關系曲線以及不同氣壓下的飽和曲線www欧日精品www，確定了常規(guī)的工作條件人人人操人人看；4測量了鹽酸清洗電離室內(nèi)表面降低本底的效果；5不確定度分析表明相對測氡的擴展不確定度(k=2)小于5％国产粉嫩00福利福利福利，由本底漲落得出探測下限為0.5 Bq精品一二；6理論上對壁損失修正進行了計算，實驗上保持電離室工作在飽和區(qū)的情況下久久精品黄色，測量了不同氣壓下電離電流的變化自拍偷拍亚洲专区图片，從中得出了壁損失隨氣壓變化的規(guī)律，可以看出8050午夜一级无码，電離電流的實測值和計算值隨氣壓變化規(guī)律基本一致天天舔天天干；當氣壓大于125 kPa時，端效應等其它因素造成的影響不大于2％看免费的口交黄片，因而在此工作條件下可以直接免费看黄的网站，測量電離電流后通過計算修正壁損失可以實現(xiàn)近似的絕對測氡，提出了進一步提高絕對測量準確度的方法免费一级黄色操B网站。

Based on the principle of PEC, surface cracks mainly affect the high frequency components and subsurface crack mainly affect the low frequency components, so the PEC signals can be analyzed in frequency domain, which can eliminate the influence of noises during measurement. A method of frequency spectrum separating point is proposed for flaw classification, which enhances the accuracy in classification of defects. The agreement between theory and experiment shows that the present method is valid and applicable.

通過對脈沖渦流的理論分析發(fā)現(xiàn)三级特级婬国产高清，表面裂紋主要影響脈沖頻譜中的高頻成分，而表面下裂紋主要影響脈沖頻譜中的低頻成分超碰在线免费97，因此可以將時域中易受噪聲影響的脈沖渦流信號變換到頻域分析美国黄色一片，提出了"頻譜分離點"的方法來對裂紋進行分類識別，提高了缺陷分類識別的正確率在线欧美黄片，理論分析和實驗結果相一致A片欧美另类拳头交在线视，證明了該方法的正確性和有效性。

In part two, Writer analyses the electric field with catalyst theorically. The results show: The most intensive electric field of pellets in the electric field occurs at the two ends along electric field, and the larger the dielectric constant, the more intensive the electric field.

第二部分亚在线综合视频在线，對有催化劑情況下的電場分布進行了較為詳細的理論分析黄片免费链接，結果表明：電場中的催化劑小球表面沿電場方向兩端部場強最強，并且表面場強隨催化劑介電常數(shù)的增加而增加91.com麻豆。

A layer of strip steel was found abrasion-welded to the surface of the spalled fragment and a 0.06mm thin layer of untempered martensitic structure was observed on the surface of the roll just beneath the welded strip.

在剝落塊的表面上粘結著帶鋼，在帶鋼下的軋輥表面上觀察到一層厚度約0.06mm未經(jīng)回火的馬氏體組織日本黄色网站一级片，此層下面還有一個具有低硬度的回火馬氏體區(qū)域国产女同精品一区二区三区，晶間顯微裂紋就從此兩區(qū)域之間發(fā)生，然后垂直地向里向外擴展外国黄色视频九九。