The expanding curves and continuous cooling transformation curve (dynamic CCT curve) of X60 pipeline steel were obtained by dilatometry and microscopic test under different cooling speed.
利用膨胀法,结合金相法,测定了X60不同冷却速度下连续冷却转变的膨胀曲线,获得了该钢的连续冷却转变曲线(动态CCT曲线);
According to the tempering temperature and hardness curve, the redistribution of residual stress is associated with the transformation of residual austenite.
由回火温度与硬度变化曲线证实,残余应力重新分布是与残余奥氏体转变相关联。
Then, two methods are discussed which are point-circle transformation and circular curve fitting for inspecting the bearing's circularity, dimension and concentricity.
然后,着重讨论了用于轴承边界的圆度、尺寸和圆心度检测的两种计算方法—点—圆变换法和圆形曲线拟合法。
A new effective method which makes use of quaternion theory is presented to implement location transformation of a plane curve.
利用实四元数理论,提出了一种将一般位置平面曲线变换到空间任意指定位置的一种简捷方法。
By some transformation, it may also lead to the curve fitting by exponential functions.
通过变换又可导致指数函数曲线拟合。
Secondly, the meshing path of the contact point of SCMW is deduced based on the meshing function of space curve and the space coordinate transformation.
其次,本文在前期研究建立的空间曲线啮合方程基础上,结合空间坐标变换,推导出空间曲线啮合轮的啮合轨迹;
Owing to the discrete acquisition data, we should use fitted curve to find the optimal transformation between weight and volt.
由于采集到的数据是离散的,须进行适当的曲线拟合才能保证满足系统要求的重量和电压之间的转换精度。
The wavelet transformation method is adopted to withdraw vehicle features with the curve and then to assort vehicles automatically. The results of assorting by this method is more successful.
作者采用小波变换方法从频率变化曲线提取车型特征可以实现对车辆的自动分类。
The XB4450 imitating milling machine transformation is four axes three linkages numerical control milling machines. It may process the complex curve, the curved surface.
将XB4450仿型铣床改造为四轴三联动的数控铣床,可以加工复杂的曲线、曲面。
The deformation moves CCT curve to left and up direction. the cooling transformation initiating temperature of austenite increases more with the increase of cooling rate.
变形使CCT曲线向左上方移动,提高了奥氏体冷却转变开始温度,随冷速加大提高得越多。
The animation programs of the making revolution surface is compiled, and a general coordinate formula of geometric transformation is deduced about an arbitrary revolution curve around a rotation axis.
给出旋转曲面生成过程的动画程序,并导出了任一曲线绕任意轴旋转的坐标间几何变换公式。
By using a certain projective transformation, a smooth planar parametric curve with any function may be changed into a new planar parametric curve of order 3 in a rational form.
本文讨论了任意函数类的一条光滑平面参数曲线段,在适当的射影变换下,可以变为相应的有理形式的平面三阶参数曲线。
Methods: The compounds were identified by the convolution curve transformation technology and computer information process technology.
方法:采用褶合变换技术和计算机信息处理技术进行鉴别分析。
The cam contour curve was obtained through coordinate transformation method. It offers references for dynamic simulation and the programming of numerical-control machining for cam mechanism.
利用坐标变换的方法得到的凸轮轮廓线可为凸轮机构的动力学仿真和数控加工编程提供依据。
The R-curve and thermal shock resistance properties are improved and the transformation effect are strengthened by the surface compressive stress effect.
表面压应力作用强化了相变增韧效果,改善了材料的表面抗裂纹性能和抗热震稳定性等力学性能。
This paper tries to show all the transformation Phillips curve has experienced by reviewing the Phillips curve theory, as well as all the reasons behind them.
本文试图通过对菲利普斯曲线理论演变过程的重新梳理,呈现菲利普斯曲线在形式及内涵上的各种变化,并对其变化原因给出解释。
This paper tries to show all the transformation Phillips curve has experienced by reviewing the Phillips curve theory, as well as all the reasons behind them.
本文试图通过对菲利普斯曲线理论演变过程的重新梳理,呈现菲利普斯曲线在形式及内涵上的各种变化,并对其变化原因给出解释。
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