More than 50 GaAs/GaAlAs High Power Single Quantum Well Semiconductor Lasers are aged. The threshold current decreases during the early aging (first 520 h) and the largest decrease is 57 mA. From the aging result of more than 1000 h at constant current, we find that output power increases during the early aging , and then decay slowly according to exponent law.

通過對(duì)50余只808nm的GaAs/GaAlAs高功率單量子阱遠(yuǎn)結(jié)半導(dǎo)體激光器的老化實(shí)驗(yàn)觀測(cè)，在老化初期（前520h）欧美性爱性爱，閾值電流隨老化時(shí)間的延長(zhǎng)而下降亚洲激情图片，下降幅度高達(dá)57mA，從1000h多的恒流電老化結(jié)果可以看出国产亚洲日韩精品欧美一区二区，器件的輸出光功率在老化初期有所上升国产自慰喷水福利，隨后，表現(xiàn)出按指數(shù)規(guī)律緩慢下降的行為一级毛片免费看大尺度。

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During aging, Gastel index which is sensible to aging condition decreased with increase of aging temperature and aging time. As the same time, the exponential relationship between the change of viscosity and aging time was discovered. Both the gastel index and the aging index can be used to evaluate the aging resistance of the colored paving asphalt.

彩色瀝青老化過程中，瀝青膠體不穩(wěn)定指數(shù)對(duì)瀝青老化條件很敏感看黄网站在线看，隨老化溫度的升高和老化時(shí)間的延長(zhǎng)而增加91精品国产综合在线蜜臀；粘度隨老化時(shí)間的延長(zhǎng)近似呈指數(shù)關(guān)系增加，所以可以用膠體不穩(wěn)定指數(shù)和老化指數(shù)來評(píng)價(jià)彩色瀝青的老化性能日韩午夜丝袜无码视频。

The results showed that the adhesion between rubber and steel cord increased under unaged,hot air aging or brine aging conditions as the level of cobalt ...

結(jié)果表明国内日韩欧美自拍视频在线观看，隨著鈷鹽用量的增大，在未老化女生被操免费网站、熱空氣老化及鹽水老化條件下黄片的视频，膠料與鋼絲的粘合強(qiáng)度有所提高；在濕熱老化條件下国产孕妇对白在线观看网站大全下载，粘合強(qiáng)度由于熱量和濕氣的交互作用而發(fā)生較大幅度的下降欧日美韩二区，但鈷鹽用量在10份時(shí)粘合強(qiáng)度的下降為最小。綜合膠料初始和老化后的應(yīng)力應(yīng)變性能和粘合強(qiáng)度91人妻自拍，以10份鈷鹽用量為最佳免费A片视频在线观看。

The anti-aging performance of the two paving asphalts was characterized with the changes of conventional and unconventional properties.

以兩種國產(chǎn)道路瀝青為研究對(duì)象，分別以薄膜烘箱實(shí)驗(yàn)和薄膜烘箱實(shí)驗(yàn)組合壓力容器老化實(shí)驗(yàn)?zāi)M瀝青的短期老化與長(zhǎng)期老化三级黃色毛带，以老化實(shí)驗(yàn)前后瀝青的常規(guī)和非常規(guī)性質(zhì)的變化表征抗老化性能最近最新2019中文字幕免费视频。

Pseudo-boehmite was prepared with nitric acid and sodium aluminate under the same precipitation conditions but different ageing and washing conditions. The influences of ageing temperature, ageing time and ageing media were studied. It was shown that pronging the ageing time and increasing temperature lead to improve crystallinity of PB., the pore diameter of PB can be increased after NH4HCO3 is added in the ageing medium.

在相同成膠條件下利用鋁酸鈉溶液和硝酸制備擬薄水鋁石，而在不同條件下進(jìn)行老化在线看a片欧美，研究了老化溫度各种无码走光视频免费、老化時(shí)間及老化介質(zhì)的影響爆乳美女裸体性插视频网站，結(jié)果表明延長(zhǎng)老化時(shí)間、提高老化溫度和老化pH值有助于結(jié)晶度的提高韩国精品无码永久在线观看，使用NH4HCO3等具有擴(kuò)孔作用的溶液作為老化介質(zhì)會(huì)降低產(chǎn)品的堆密度和增加孔徑亚洲中文字幕精品久久HD、孔容、比表面積人人插日日射。

Based on test conditions of these two acceleration weathering methods in NES M1041,possibility is discussed on Xenon Arc Lamp Acceleration Weathering Test Substituting Sunshine Carbon Arc Lamp Acceleration Weathering Test in vehicle'acceleration weathering tests.

因此五月激情婷婷综合免费视频，在研制相應(yīng)部品時(shí)，必須模擬自然使用條件對(duì)其進(jìn)行老化測(cè)評(píng)小草一级黄色网站。為了能快速評(píng)估材料的抗老化性能中文人成在线视频，在進(jìn)行高分子材料的老化試驗(yàn)中，采用了人工加速老化的方法色色色爽爽爽。目前人們常用的人工加速老化試驗(yàn)有氙弧燈黃片www.、熒光紫外燈、金屬燈和碳弧燈老化等久久国产精品99久久久久久。

I''d like to take the opportunity to thank you allI hope that we can cooperate sincerely, complement each other, realize double winscreate bright future together. Salt Spray test chamber\ sulfur dioxide hydrogen sulfide test chamber\ High temperature test chamber\ Low temperature test chamber\Highlow temperature test chamber\ Highlow temperature-humidity test chamber\ Highlow temperature alternating temperature humidity test chamber\ Desktop constant temperaturehumidity test chamber\ Constant temperaturehumidity test chamber\ Precise drying test chamber\ Vacuum drying chamber\ Highlow temperature shock test chamber\ Ultraviolet accelerated weatherometer\ Xeon lamp weather resistance test chamber\ Air ventilation climatic chamber\0zone climatic chamber\ Rustproof grease humidity test chamber\ Sanddust test chamber\ Box rain test chamber\ Pipe rain test device\ Drip box\ Alternating mould test chamber\ Salt-mist corrosion laboratory\ Salt-mist corrosion laboratory\ Large highlow temperature stepping into laboratory\ Temperature aging room\ Vacuum UV aging test chamber\ Mechanical test bed\ Computer control vibrating table\ Temperaturehumidityvibrating combined testing machine\ Instantaneous temperature test chamber

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The changes of penetration,ductility,softening point and viscosity of bitumens at different aging times are analyzed and the critical aging time of bitumens is determined based on these test results.

對(duì)原樣瀝青進(jìn)行不同時(shí)間的老化91,偷拍视频，測(cè)試其在不同老化時(shí)間性能指標(biāo)的變化，利用殘留針入度比一级毛片女人与拘交久久剧场、殘留粘度比、殘留延度比和軟化點(diǎn)增量等老化指標(biāo)來分析瀝青的老化趨勢(shì)999这里有精彩免费精品，確定出了瀝青的臨界老化時(shí)間欧美性爱,激情性交网。

The results showed that changes of content of saturants, aromatics and asphaltenes were similar during the three kinds of aging test, i.e. the saturants content almost kept invariable, the aromatics content obviously decreased and the asphaltenes content remarkably increased.

本文通過室內(nèi)模擬加速老化試驗(yàn)（短期熱氧老化試驗(yàn)、長(zhǎng)期熱氧老化試驗(yàn)和長(zhǎng)期光熱老化試驗(yàn)）和對(duì)瀝青的四組分分析国产伊甸园精品视频，研究了瀝青在拌和怡春院av、鋪筑和使用過程中光氧、熱氧老化機(jī)理在线观看国内精品。

accelerated aging：人工時(shí)效加速老化

accelerated aging test 加速老化試驗(yàn) | accelerated aging 人工時(shí)效加速老化 | accelerated break-down test 加速破損試驗(yàn)

accelerated aging：加速老化試驗(yàn)

accelerated ageing test 加速老化試驗(yàn) | accelerated aging 加速老化試驗(yàn) | accelerated burn-up test 加速燃耗試驗(yàn)

age hardening：時(shí)效硬化,老化

age 使用年限,時(shí)期;老化,時(shí)效 | age hardening 時(shí)效硬化,老化 | ageing 時(shí)效,陳[老]化

Accelerated ageing：加速老化,人工老化

16. acceleratd ageing test 加速老化試驗(yàn) | 17. accelerated ageing 加速老化,人工老化 | 18. AC capacitor 無極性電容器

Accelerated ageing：加速老化,人工老化;加速實(shí)效

accelerate 加速 | accelerated ageing 加速老化,人工老化;加速實(shí)效 | accelerated aging 加速老化,加速時(shí)效

ageing test：老化試驗(yàn)

ageing 老化 | ageing test 老化試驗(yàn) | agent 附加劑

ageing test：老化試驗(yàn),耐久試驗(yàn),時(shí)效試驗(yàn)

"ageing resistance ","抗老化性能,耐久性,時(shí)效電阻" | "ageing test ","老化試驗(yàn),耐久試驗(yàn),時(shí)效試驗(yàn)" | "ageing voltage ","老化[用]電壓"

artificial aging：人工老化;人為老化

烷胂酸 arsonoalkane | 人工老化;人為老化 artificial aging | 人造無煙煤 artificial anthracite

burn-in stress function：老化測(cè)試應(yīng)力施加功能

burn-in rack 老化測(cè)試架 | burn-in stress function 老化測(cè)試應(yīng)力施加功能 | burn-in system 老化測(cè)試系統(tǒng)

ageing characteristics of mucilages：膠漿的老化性能(美國印花藝術(shù)用語)

age-inhibiting additive 防老化添加劑;阻老化添加劑 | ageing characteristics of mucilages 膠漿的老化性能(美國印花藝術(shù)用語) | ageing stability 老化穩(wěn)定性