The proportion of the content of benzaldehyde to grass-type flavor for the fruit of treatment with exogenous ethylene is far higher than that of fruit after cold hardening.

Analysis is made on gas evolution changing pattern of furane bonded sand core material after vacuum hardening, on affection to compressive strength arid the microstructure after infrared drying.

分析研究真空硬化后的呋喃树脂砂芯材料发气性变化规律、红外烘干后对抗压强度的影响及其微观结构特点。

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Microhardness test and residual stress measurement were done along the depth of piston rod after induction hardening to compare with the results of calculation.

对感应淬火处理的活塞杆进行了沿深度方向的显微硬度试验和残余应力测试。

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Addition Sc in Al Mg alloy can improve the tensile properties of the alloy after strain hardening and stabilization treatment

Al-Mg合金添加Sc能使该合金在应变硬化和稳定化处理后具有良好的机械性能

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The life of the hammers and the teeth increase about 50% after explosive hardening.

锤破机锤头和电铲铲牙爆炸预硬后，其使用寿命可提高约50%。

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Reason and Improvement of Grinding Crack Producting in Nut after Induction Hardening

连杆螺母高频淬火后磨削裂纹产生的原因及改进方法

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Computer prediction and experiment validation of microstructure and hardness distribution of parts after induction hardening

感应淬火零件组织和硬度分布的计算机预报及试验验证

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Lower stress sensitivity and lower yield point temperature were found after cold hardening.

发现胁强敏感度和屈服点温度受冷锻炼影响而下降，时间敏感度未表现明显变化。

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The analysis of X diffraction of the samples after hardening showed that under shot peening conditions, the strengthening mechanism of high manganese steel had deformation twinning density and dislocation density but no Martensite strengthening.

加工硬化后试样的X衍射分析显示，在喷丸处理条件下，高锰钢的加工硬化机制为位错理论和孪晶硬化理论，没有诱发马氏体相变。

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Then hardness of coatings and substrate was measured. By means of bend-rotation fatigue tests, fatigue strength of coating and uncoating specimens was compared after hardening and tempering.

然后测量涂层和基体的硬度，并通过采用旋转弯曲疲劳试验比较涂层试样与未涂层试样的疲劳强度。

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After hardening 4h and 8h the compressive strength of the patched concrete is bigger than 20 MPa, which can satisfy the request of fast patching.

修补混凝土硬化后4h、8h抗压强度大于20MPa，能满足快速修补的要求；

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By means of bend-rotation fatigue test, the fatigue strength of Ni based alloy-WC composite coating and uncoatings specimens were compared after hardening and tempering.

通过旋转弯曲疲劳试验，比较涂层试样与未涂层试样在调质处理后的疲劳强度。

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Physi-cal properties of cement paste and fresh concrete must be emphasized because of their decisive determination of the properties of cement and concrete after hardening.

特别需要重视水泥浆体和新拌混凝土的物理性质，因为就是它们，决定了水泥与混凝土硬化后的一系列性能。

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At the strong base, the surface of sand would been dissolved partly, and form a double salt with alkali in binder after hardening.

在强碱性粘结剂的作用下，砂粒表面会部分溶解，溶解部分固化后与粘结剂中的碱一起形成复盐；

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Mechanical properties of three after-forged heat treatment samples are all meet or exceed the demands of performance index after hardening and tempering.

三种热处理工艺调制后的试样力学性能均达到或超过生产指标要求。

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Variation of Thickness and Density of Metal-Grinding Disks before and after Hardening

浅析烤制前后金属磨片厚度和密度的变化

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Construction practice and tests show that the lime content is a direct factor for the after hardening strength of the base course.

工程实践及试验表明：石灰的掺量对路面基层后期成型强度有直接影响。

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Behind The Wheel Research on Hardening and Soften Treatment after Hardening of the Train Wheel Bruise

车轮踏面的硬化及硬化后的软化处理研究

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Rolling bearing manufacturers eliminate such dimensional changes by a defined tempering process after hardening.

滚动轴承制造商通过界定回火过程等来消除淬火后的尺寸变化。

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It emphasizes the reasons and features of cracks development of wall concrete before and after hardening.

本文对住宅墙体混凝土的早期与长期裂缝的出现原因进行了分析，着重论述了墙体混凝土硬化前后的裂缝发展的机理及特征。

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The performance and service life of blade can be greatly improved after hardening.

经过激光处理后的锯片使用性能和寿命大幅度提高。

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