Over a three-month period, there was no statistically significant difference in injury risk between the pre-run stretching and non-stretching groups.
在三个月中，两个群体之间在伤害风险统计上没有太大的区别。
For the process of the fiber taper drawing, the pre-heating time and stretching speed are carefully examined for parameter optimization.
在加热拉伸过程工艺方面，本文从预加热时间和拉伸速度两个角度进行研究，对参数进行优化处理。
The effect of quenching temperature, the interval time from quenching to aging and aging institution to 2A70 aluminium alloy pre-stretching plate structure and properties are introduced.
介绍了固溶处理温度、淬火到时效间隔时间及时效制度等对2A70铝合金预拉伸厚板组织和性能的影响；
The heat treatment production institutions of 2a70 aluminium alloy pre-stretching plate are determined.
确定了2a70铝合金预拉伸厚板的热处理工艺参数。
To eliminate the residual stress of aluminum alloy pre-stretching board, an elastic-plastic finite element model was developed to simulate the vibratory stress relief (VSR) process.
为消除铝合金预拉伸板中的残余应力，采用弹塑性有限元法对振动时效消除残余应力进行数值模拟。
With FEA based quenched stress, different stress distributions were obtained under different conditions of pre-stretching.
在获得淬火残余应力的基础上，模拟了不同预拉伸量对毛坯的淬火残余应力的消除。
The procedures of mesh stretching, pre-treatment, emulsion coating, exposure and developing are all explained both in theory and practice.
对绷网、前处理、涂覆感光乳剂、曝光、显影等各工序的技术细节从理论上和实践上作了详尽的解释与说明。
Stretching through pre-traction of the hip-joint on the wall-side with isochronic retract of the outside shoulder.
先从靠墙的臀关节收缩，及离墙较远的肩膀等量的再收缩，完成伸展。
Stretching through pre-traction of the hip-joint on the wall-side with isochronic retract of the outside shoulder.
先从靠墙的臀关节收缩，及离墙较远的肩膀等量的再收缩，完成伸展。
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