Therefore, the border is a closed vertical surface dry surface, rather than a line on this for a very high to very high sky, deep deep down into the earth's crust.

因此久久国产免费一区二区三区，邊界是一個(gè)垂直干地表的封閉面无码视频网站毛片一区二区，而不是一條線激情福利影院，這個(gè)面向上到很高很高的天空天天干夜夜爽，向下到很深很深的地殼。

In addition, it's also very difficult to generate the closed surface fitting the outer nodes of the deformed material, the details includes locating the vertex, surface edge and loop.

本文提出基於畸變網(wǎng)格的質(zhì)量?jī)?yōu)化和局部網(wǎng)格加密／稀釋是最佳的解決方法欧美与黑人视频，既可以保持初始網(wǎng)格的拓?fù)浣Y(jié)構(gòu)日韩孕妇自拍视频网站大全免费观看，還可以有效地避開網(wǎng)格再劃分問(wèn)題。

We study dynamics of the hydrogen atom near a metal surface using the closed orbit theory, and discuss its changes of properties with the varying of the distance d between the atom and metal surface.

采用閉合軌道理論研究了近金屬表面里德堡氫原子的動(dòng)力學(xué)性質(zhì)国产精品无码AV欣赏网，討論了氫原子電子的運(yùn)動(dòng)性質(zhì)隨原子與金屬表面距離d變化的情況91自拍第1页。

These components require not only high precision and low surface coarseness, but also no hypo-surface damage.

這類元器件不僅需要極高的精度和極低的表面粗糙度，還要求無(wú)次表面損傷毛片手机在线。

The effect of base paper surface size on the surface strength of coated paper was discussed in this article.

探討了原紙表面施膠液的變化對(duì)銅版紙表面強(qiáng)度的影響国产精品秒播无毒不卡。

Metal cock ring soft seat surface pressure to the bearing surfaces, such as the valve core and valve seat is concentric ring surface can be a double tight closure.

金屬旋塞表面壓向閥座環(huán)軟支座表面，如閥芯和閥座環(huán)表面是同心的激情gif，就能得到雙重嚴(yán)密的關(guān)閉亚洲视频一,一二一。

Experiments were performed with this device to measure the static coefficient of friction for three kinds of material(45steel,HT35-61,QT80-2) in the same processing method,the same surface texture,the same load,dry friction and different surface roughness conditions respectively.

分別對(duì)材料(45鋼、HT35-61国产精品亚州国产在线手机版色、QT80-2)在相同加工方法福利影院最新地址发布页、相同表面紋理、載荷恒定黄色免费黄色网站、干摩擦條件下色色亚洲色图一区，改變表面粗糙度時(shí)的靜摩擦因數(shù)進(jìn)行了測(cè)定。

Therefore, the torque required to open the gate valve required torque than the closure of large, in addition, for a pair of contact between the sealing surface, the Non Rising Stem Resilient Seated Gate Valves coefficient of static friction between them than the dynamic friction coefficient, to make them from the static state generate the relative movement is required to exert greater force to overcome the static friction; due to temperature changes, so that the sealing surface pressure between the larger, need to overcome the static friction force also will be bigger, so that when you open the valve on the stem nut on the sometimes increase the torque exerted a lot.

所以欧美一二在线日本，開啟閘閥所需的力矩比關(guān)閉閘閥所需的力矩大黄片啪啪啪啊啊啊，此外，對(duì)于一對(duì)互相接觸的密封面來(lái)說(shuō)久久79视频，它們之間的靜摩擦系數(shù)也比動(dòng)摩擦系數(shù)大在线视频国产高清，要使它們從靜止?fàn)顟B(tài)產(chǎn)生相對(duì)運(yùn)動(dòng)，需施加較大的力以克服靜摩擦力免费黄片看裸；由于溫度變化国产又大又硬又粗又黄，使密封面間的壓力變大，需要克服的靜摩擦力也隨之變大在线鲁一鲁，從而使開啟閘閥時(shí)一道本dvd无码二区直播，對(duì)閥桿螺母上施加的力矩有時(shí)會(huì)增大很多。" Moment analysis of valve operation "是由中國(guó)閘閥網(wǎng)提供的國(guó)際閥門新聞黄色在线视频网站国产，譯文僅供參考免费无码国产在线观看91。另外，中國(guó)閘閥網(wǎng)還提供相關(guān)產(chǎn)品搜索：閘閥型號(hào)美国一级簧片、閘閥價(jià)格亚洲爽爽爽爽爽爽成年网站、閘閥技術(shù)、閘閥新聞欧美轮奸网、閘閥生產(chǎn)商等日日狠狠久久影院。

The hydroxyl groups were introduced to the surface of silicone rubber by O_2 cold plasma treatment,coatings made from chitosan were chemically bonded to silicone rubber via silane-glutaraldehyde molecules and proved by the results of surface composites analysis with X-ray photoelectron spectroscopy and attenuated total reflection fourier transform infrared spectroscopy.

用氧低溫等離子體處理硅橡膠18禁无码黄片，在其表面引入羥基，然后利用硅烷偶聯(lián)劑的硅烷反應(yīng)美女视频黄色网站免费看，通過(guò)中間物戊二醛在硅橡膠表面制備了幾丁聚糖涂層亚洲三级片国产AV。X射線光電子能譜和衰減全反射傅立葉變換紅外光譜測(cè)試證實(shí)在硅橡膠表面成功制備了幾丁聚糖涂層，表面接觸角測(cè)試表明幾丁聚糖涂層明顯提高了硅橡膠的親水性

Furthermore,we present the method for designing quadratic Bezier developable surface:give four corner points of developable surface and two free designing parameters,the other two control vertexes are on the line connecting the linear interpolation point between the first two control vertexes and the linear interpolation point between the last two control vertexes,and they are the linear interpolation points between these two linear interpolation points respectively,namely,these four linear interpolation points are colinear.

提出了二次Bézier可展曲面的設(shè)計(jì)方法：給定可展曲面的4個(gè)角點(diǎn)a0国产精品日韩在线观看最大、b0中文字幕5页、a2、b2和兩個(gè)自由設(shè)計(jì)參數(shù)亚洲男女精品视频网站？姿免费人成网站在线观看不要钱、？滋日韩人妻无码精品五五，則待求的2個(gè)控制頂點(diǎn)a1se哟哟在线观看、b1是在前2個(gè)控制頂點(diǎn)a0、b0的線性插值點(diǎn)a*與后2個(gè)控制頂點(diǎn)a2日韩人人操操操、b2的線性插值點(diǎn)b*的連線上日韩精品影视系列在线播放，并且也是a*、b*這2個(gè)線性插值點(diǎn)的線性插值日韩在线黄色片精品相关视频，即這4點(diǎn)a*日本免費黃色網站com、a1、b1黄色网站18岁以下禁止进入、b*共線黄色视频在线播放特级a级。