In the condition of employment difficulty and artificer shortage, vocational and technical education faces many serious challenge.

What is the aim of vocational education& Reflection on the phenomenon of artificer shortage

职业教育何为：由技工荒现象引发的思考

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On Labor Market Structure and Selecting Artificer Cultivation Model

劳动力市场结构与技工培养模式选择

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Several types of graphic arts films were undergone artificial ageing tests, been kept in an housing of 50 ℃ temperature and 80% relative humidity for 1-4 days, the resulted data were compared with those stored in either normal warehouse or air-conditioned storage room for 1-2 years.

几种不同型号的印刷胶片以温度50℃、相对湿度80%的条件进行1&4天的人工老化试验，所得的结果与自然保存1至2年的同样胶片性能进行分析比较。

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The kinetics in the artificial ageing process of 7050 aluminium alloy after the alloy being solution treated was studied systematically. The phase transformation mechanism during the process of ageing was investigated preliminary by transmission electron microscope ( TEM) and differential thermal analysis ( DTA).

系统地研究了7050铝合金经固溶处理后，在人工时效过程中的动力学特征，结合透射电子显微镜，差热分析仪对时效规律及时效过程中的相变机制进行了初步探讨。

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Through the treatment of artificial ageing for sample of 82B wire rods, the post-treatment change of fracture form from the original is analysed by comparison. The internal rule of change of artificial ageing is expounded.

通过对82B盘条试样进行人工时效处理，对比分析了人工时效处理前后盘条拉伸试样断口形态的变化情况，找出了82B盘条经人工时效处理后拉伸试样断口形态变化的内在规律。

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In this foundation further preparation of nano-TiO_2 latex paint was carried out. Scrubbing resistance, stain resistance and artificial ageing resistance of latex paint film were then tested and the results indicated obvious effects of modification.

在此基础上制得了纳米TiO2的乳胶漆，乳胶漆漆膜的耐洗刷性高达10000次、耐粘污性达80%和耐人工老化性高达1500小时，结果显示效果显著。

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In the paper, the results of experiment are provided, the micro-mechanisms of both natural and artificial ageing are studied, and a new way to improve the mechanical properties of zinc-containing alloys is proposed.

文内提供了实验结果，并对自然时效和人工时效的机制进行了研究，为提高锌基合金型材的力学性能开拓一条新途径。

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Artificial ageing can be made through means of ultraviolet rays lighting, toast, solution soaking and rubbing and contamination, but every aged document has relative characteristics due to the different means.

通过紫外线照射、烤、液浸泡和揉搓沾污等手段可以人为老化文件，但由于所使用的手段不同而使人为老化后的文件各具相应特征。

provided by jukuu

The yield strength is reduced by 10~ 20 MPa after natural ageing and it can be simulated by artificial ageing ( 100 ℃× 2h or 200 ℃× 1h).

自然时效后屈服强度下降10～20MPa，用人工时效可以模拟自然时效，工艺是100℃×2h或200℃×1h。

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Treated in the artificial ageing condition of 100% relative humility and 40 ℃ for 5 days, the ageing degree is equal to that during one summer natural temperature ageing condition.

在100%的相对湿度、40℃的人工老化条件下处理5d左右，对种子的老化程度与一次自然室温越夏的老化程度大致相当。

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Light ageing properties of poly ( vinyl chloride)( PVC) by the carboxylic ester rare earth salt and the organotin have been compared by artificial ageing test.

用人工老化的方法比较了羧酸酯稀土和有机锡对聚氯乙烯（PVC）的光老化稳定作用。

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, and YS ( yield strength) and the value of YS/ UTS increase through the followed artificial ageing with obvious loss of elongation.

而其后的人工时效处理能明显提高合金的屈服强度和屈强比，但也明显降低了延伸率。

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Micro-hardness test and XRD spectra indicate that artificial ageing treatment at low temperature can further improve the mechanical property of the solid solution strengthening aluminum alloy after ECAP process.

显微硬度以及XRD测试结果显示低温时效处理进一步提高了强化固溶态高强铝合金ECAP加工后的机械力学性能。

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The structure change of Cu_ ( 55) Zr_ ( 45) metallic glass during natural and artificial ageing was investigated with EXAFS method.

本文应用EXAFS结构分析法研究了Cu（55）Zr（45）金属玻璃经天然和人工时效后引起的结构变化。

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The time lapsing artificial ageing of six membrane materials with acrylate, PVDF and PTFE top coatings are investigated by a practical environmental simulation.

本文采用对实际环境进行模拟的人工加速老化方法对表面涂有丙烯酸酯、PVDF（聚偏氟烯）以及PTFE的六种不同的膜材料的老化性能进行了研究。

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An EXAFS study for structure relaxation of cu_ ( 55) zr_ ( 45) metallic glass during natural and artificial ageing

天然和人工时效Cu（55）Zr（45）金属玻璃结构弛豫的EXAFS研究

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Effects of artificial ageing on the hardness distributions and strength were analyzed for6063 aluminum alloy joints welded by varying heat inputs.

对不同焊接热输入下的6063铝合金焊接接头进行人工时效，分析其硬度分布和强度的变化。

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Peanut seeds ( water content 6.2196) were stored at 38& 40 ℃ for artificial ageing storage with different gases.

花生种子（含水量6.21%）在38&40℃下进行人工老化贮藏，N1和CO2空气有延缓种子老化的效果。

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Effects of KT Treatment on Seed Vigor of Gentiana scabra in Artificial Ageing

激动素处理对人工老化条件下龙胆种子活力的影响

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Moreover, after extruding the alloys can improve their plasticity if artificial ageing is processed.

挤压后直接人工时效，可有效地提高合金的塑性。

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