Hard Spot. An area in the pipe with a hardness level considerably higher than that of the surrounding metal, usually due to localized quenching.
硬块。通常由于局部淬火引起钢管上某一部位硬度值远高于周围金属的硬度值。
Results showed that the hardness level of drying schedules had much influence on both the drying strain developed and the time when it reached its maximum value.
结果表明，基准硬度水平对应变值的大小和最大应变值的到达时间有显著影响。
To study improving the factor's Level of Kushen Pian core tablets's hardness by mathematically statistical method . This method help us select the best productive process.
本文采用数理统计学的方法，研究了提高苦参片基片硬度的各种因素，找到了最佳工艺路线。
Device features: high softening rate, low outlet water hardness, simple and convenient regeneration and operation, high automation level.
装置特点：软化效率高、出水硬度低、再生操作简单方便、自动化程度高。
Features of this process have been demonstrated from the good characteristics and excellently even hardness of the sand mold, and low noise level detected.
以该法的砂型性能良好与砂型硬度高度均匀以及噪声测定水平，来显示此法的特色。
The first-level softening resin filter, can effectively remove scale to achieve less than 50 mg in water hardness.
第一级软化树脂滤芯，能有效去除水垢使水质硬度达到50毫克以内。
For a practical rubber engine mount, empirical formulae are established which vary with material hardness and compression level.
结合某型发动机悬置，计算得到了不同硬度胶料产品在不同变形量情况下形状系数的经验公式。
After the depth increased to a certain level, conversion degree decreased more evidently than micro-hardness.
当深度增加至一定水平后，转化度的下降比硬度的下降更为迅速而明显。
Results show that the ratio of hardness of matrix to that of interface transition zone decreases with the increase of cement replacement level by blast furnace slag;
试验结果显示：随矿渣取代水泥质量分数的增加，基体与界面过渡区之间压痕硬度的差异减少；
The microhardness increases first and then remains at a certain level with the increasing passes, while the route effects on hardness are related to the pass number and the refinement effects.
随挤压次数增加，硬度先增大后保持基本不变，而挤压路径对硬度的影响与挤压次数、挤压后细化效果密切相关。
And shell after adequate heat treatment to a certain level of hardness, to ensure the accuracy and stability of movement and life.
且壳体经充分的淬火热处理以达到相当的硬度，确保运动时的精度和稳定性及使用寿命。
And shell after adequate heat treatment to a certain level of hardness, to ensure the accuracy and stability of movement and life.
且壳体经充分的淬火热处理以达到相当的硬度，确保运动时的精度和稳定性及使用寿命。
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