后循环的

On the other hand, the world has gone into an era of knowledge economy, the manufacture technology of the automobile industry in the world is much more than design and production and should include its whole life period or periods from market investigation, development and amelioration, manufacturing, distribution, after-sales service, breaking-down and reclamation to new cycles.

一是我国加入WTO后，国产汽车要应对全球化的挑战；二是进入知识经济时代，世界汽车工业的制造技术应考虑和操作的不再止于产品的设计与生产，而应包括从市场调查、产品开发和改进、制造加工、销售、售后服务，到产品报废、解体、回收，再到循环使用、循环利用的产品整个生命周期和多个生命周期。

Methods Enamel surface specimens were randomly allocated into 3 groups: 1 450 mg/L sodium fluoride dentifrice group, 1 450 mg/L sodium monofluorophosphate dentifrice group and non-fluoride dentifrice control group. Sound enamel surfaces were dematerialized in bacteria model in vitro. QLF was used to analyze the area of lesionsArea, the loss of fluorescenceΔF and ΔQArea×ΔF on enamel surfaces after demineralization.

将30个牙釉质块开窗后分为3组，分别使用氟含量1 450 mg/L的氟化钠牙膏、单氟磷酸钠牙膏和无氟牙膏的处理液处理，并在体外恒化器龋病模型中进行脱矿循环，定量光导荧光技术QLF分析病损脱矿后的面积、荧光损失和总荧光损失量，激光扫描共聚焦显微镜CLSM分析脱矿后矿物质含量变化。

Methods Enamel surface specimens were randomly allocated into 3 groups: 1 450 mg/L sodium fluoride dentifrice group, 1 450 mg/L sodium monofluorophosphate dentifrice group and non-fluoride dentifrice control group. Sound enamel surfaces were dematerialized in bacteria model in vitro. QLF was used to analyze the area of lesions, the loss of fluorescence and ΔQ on enamel surfaces after demineralization.

将30个牙釉质块开窗后分为3组，分别使用氟含量1 450 mg/L的氟化钠牙膏、单氟磷酸钠牙膏和无氟牙膏的处理液处理，并在体外恒化器龋病模型中进行脱矿循环，定量光导荧光技术分析病损脱矿后的面积、荧光损失和总荧光损失量，激光扫描共聚焦显微镜分析脱矿后矿物质含量变化。

Enamel surface ecime were randomly allocated into 3 grou : 1 450 mg/L sodium fluoride dentifrice group, 1 450 mg/L sodium monofluoropho hate dentifrice group and non-fluoride dentifrice control group. Sound enamel surfaces were dematerialized in bacteria model in vitro. QLF was used to analyze the area of lesio, the lo of fluorescence and ΔQ on enamel surfaces after demineralization.

将30个牙釉质块开窗后分为3组，分别使用氟含量1 450 mg/L的氟化钠牙膏、单氟磷酸钠牙膏和无氟牙膏的处理液处理，并在体外恒化器龋病模型中进行脱矿循环，定量光导荧光技术分析病损脱矿后的面积、荧光损失和总荧光损失量，激光扫描共聚焦显微镜分析脱矿后矿物质含量变化。

With the development energetically of nuclear power and making us...

在大力发展核能，和平利用原子能的同时，对核燃料的循环利用是相当重要的，在核燃料循环过程中，乏燃料后处理又是一个很重要的环节。

And hey, there was something satisfying and clarifying about writing dumb code after being born in high-level land-my first for-loop in Java, for example, helped me better appreciate the cleaner, object-oriented practices I knew, but I also saw something appealing in the for-loop itself.

以Java 里面的for循环为例，当以我的高级程序语言的背景，编写了一些这样的基础代码后，发现这种代码可以更好地帮助我理解面向对象的一些实践，但同时我也对 for循环本身也产生了兴趣。

A cryogenic air separation system wherein feed air is compressed in a multistage primary air compressor, a first part is turboexpanded and fed into a cryogenic air separation plant, and a second part is turboexpanded and at least a portion of the turboexpanded second part is recycled to the primary air compressor at an interstage position.

一种低温空气分离系统，其中进料空气在一台多级初级空气压缩机中压缩，使第一部分进行透平膨胀后送入低温空气分离设备，使第二部分进行透平膨胀后，将已透平膨胀后的第二部分中的至少一部分再循环回到该初级空气压缩机的级间位置。

The results show that antioxidation property of the modified phosphatic coating after oxidized for 30h at 700℃ is superior, weight loss percent of coating sample is only 1.76％. After thermal shock, i.e. for 3 min at 900℃ for 2 min at room temperature circulating about 30 times, for 3 min at 1100℃ for 2 min at room temperature circulating about 10 times, weight loss percent of coating sample is up to 1.97％, and coating don't slough off.

结果表明：在700 ℃氧化30 h后，改性磷酸盐涂料的防氧化性能优异，涂层试样的氧化失重率仅为1.76％，经过900 ℃、3 min 室温、2 min循环30次和1100 ℃、3 min 室温、2 min 循环10次连续热震后，涂层试样的失重率为1.97%。

During growth phase the metabolic flux to glycerol synthesis was much large, and the carbon was mostly catabolized in TCA in the glycerol production process. With large flux through TCA cycle ATP could be overproduced by NADH oxidation and most ATP may be in futile cycle, which may be the reason that the yield of glycerol is hard to be improved.

分析发现菌体生长阶段合成丙三醇的代谢流较大，这可能是细胞为了维持高渗透压环境下正常生理功能所需；但是在菌体生长停止后，产丙三醇阶段合成丙三醇的代谢流并没有增加，而是TCA循环中代谢流增加，于是产生的NADH氧化生成更多ATP，大都ATP可能是无效循环消耗掉，这是丙三醇产率没有达到理想产率的根本所在。

Sound enamel surfaces were dematerialized in bacteria model in vitro. QLF was used to analyze the area of lesions, the loss of fluorescence and ΔQ on enamel surfaces after demineralization. Confocal laser scanning microscopy was used to quantify the mineral content after demineralization.

将30个牙釉质块开窗后分为3组，分别使用氟含量1 450 mg/L的氟化钠牙膏、单氟磷酸钠牙膏和无氟牙膏的处理液处理，并在体外恒化器龋病模型中进行脱矿循环，定量光导荧光技术分析病损脱矿后的面积、荧光损失和总荧光损失量，激光扫描共聚焦显微镜分析脱矿后矿物质含量变化。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。