It is common knowledge now that the way to make rubber hard and strong -- to "vulcanize" it, as we say -- is by heating it with sulphur .

要使橡膠硬而結(jié)實的方法——也就是我們所說的"硫化"——就是要摻入硫磺加熱，這一點現(xiàn)在已經(jīng)是常識了黄色在线看片黄色在线看片。

It is common knowledge now that the way to make rubber hard and strong--to "vulcanize"it,as we say--is by heating it with sulphur.

現(xiàn)在這是普通的知識，這種使橡膠變堅硬和結(jié)實的方法--叫做硫化法，正象我們知道的一樣--把橡膠和硫放在一起加熱人人爱人人操人人搞。

Goodyear spent another four years,in which things went very badly with him,before he made the discovery how to vulcanize rubber completely.

固特異又化了四年的時間，在這四年中，霉運一直跟著它蝌蚪网在线视频，直到發(fā)現(xiàn)如何使橡膠完全硫化的方法免费一级啪啪啪视频。

As a part of this key program from China Natural Science Foundation, this research focuses on the electrochemical reactions and oxidization products on the surfaces of jamesonite and marmatite, and on the change of their interfacial structures and their electrochemical mechanisms by various methods of thermodynamic, electrochemistry (such as Tafel, constant potential step, cycle voltammetry, AC impedance) and IR, UV spectra when the collectors, adjusting reagents act with the sulfide minerals in the flotation system so that the electrochemical conditions to float selectively the minerals can be decided.

本研究作為該國家自然科學(xué)重點基金項目的一部分，采用熱力學(xué)A片无卡不码国产在线、電化學(xué)(Tafel在线免费可以观看黄色视频、循環(huán)伏安、恒電位階躍和交流阻抗法)以及光譜等多種研究手段欧美精品视频二区免费播放，集中研究了浮選體系中脆硫銻鉛礦亚洲亚洲人综合网站图片、鐵閃鋅礦表面的電化學(xué)反應(yīng)及氧化產(chǎn)物，研究這兩種礦物與捕收劑av.bbixx、調(diào)整劑相互作用時的界面結(jié)構(gòu)變化及電化學(xué)機理欧州A片网址，闡明了使藥劑選擇性捕收或選擇性抑制這些硫化礦物的電化學(xué)條件。

This product is used for that in order to reach even and effective desulfidation for rubber powder, put pulverous crosslinked rubber, softener, activator and water into the pot ,heat hermetically and mix contlnuously, adopted key equipment for the technology of high temperature dynamic desulfidation.

該產(chǎn)品用于將粉末狀硫化膠與軟化劑超碰在线波、活化劑及水等置于罐內(nèi)免费黄色网站有哪一些，在連續(xù)攪拌下密閉加熱，以使膠粉達到均勻有效膠硫目地www欧美在线，是采用高溫動態(tài)脫硫新工藝的關(guān)鍵設(shè)備99irav.6。

This product is used for that in order to reach even and effective desulfidation for rubber powder, put pulverous crosslinked rubber, softener, activator and water into the pot ,heat hermetically and mix contlnuously, adopted key equipment for the technology of high temperature dynamic desulfidation.

該產(chǎn)品用于將粉末狀硫化膠與軟化劑、活化劑及水等置于罐內(nèi)国内精品乱伦，在連續(xù)攪拌下密閉加熱无码专区无码专区性无码，以使膠粉達到均勻有效脫硫目地，是采用高溫動態(tài)脫硫新工藝的關(guān)鍵設(shè)備人人干人人摸视频网站。

The apex rubber is formed by winding an unvulcanized rubber strip along the assembly forming surface from a starting position constituted by the radially outer peripheral surface of the bead core supported on the receiving surface so as to laminate in a tapered cross sectional shape.

通過從開始位置沿著組件形成面卷繞未硫化的橡膠條使其層疊成漸縮的橫截面形狀而形成三角膠芯自拍第一页，所述開始位置由支撐在所述接收面上的胎圈芯的徑向外周面構(gòu)成。

Spent another four years, in which things went very badly with him, before he made the discovery how to vulcanise rubber completely.

固特異在發(fā)現(xiàn)使橡膠完全硫化的方法以前丝袜欧洲另类自拍视频在线观看免费，又度過了四個艱苦的年頭在线黄色网站视频。

Goodyear spent another four years, in which things went very badly with him, before he made the discovery how to vulcanise rubber completely.

固特異在發(fā)現(xiàn)使橡膠完全硫化的方法以前，又度過了四個艱苦的年頭欧美一级a大片免费看视频妇产科。

And the temperature susceptibility of the vulcanized-SBR asphalts were reduced to a great extent, their properties were improved apparently from low to high temperature, their application would be developed widely in the high temperature environment conditions.

硫化共混改性瀝青對使用環(huán)垅的溫度敏感性變小一级黄色网站直接看，使改性瀝青的高低穩(wěn)定性能均得到改善，可在高溫環(huán)境下使用欧美区网站，拓寬了SBR改性瀝青的使用范圍精品一区二区三区换着人妻玩。