The results of performance measurement test show that tensile-strength, contraction of cross sectional area, elongation percentage, dynamic ductility of the weld all exceed their base metal.
焊后试件的性能测试结果表明，焊接接头的拉伸强度、断面收缩率、延伸率及冲击韧性均已超过母材。
In the case of heavy load when the advance ratio of propeller is small, the contraction of wake has large effect on the performance of the propeller.
在小进距比的重载情况，螺旋桨尾涡的收缩对螺旋桨的性能影响较大。
It is recognized that to improve the nerve-muscle system function, enhance muscle contraction strength, is one of the most direct and important way to improve athletic performance.
人们认识到改善神经—肌肉系统的功能，增强肌肉收缩时的力量，是提高运动成绩最直接和最有效的重要途径之一。
The performance study on elastoplastic materials of expansion and contraction of bridge and culvert;
针对这种缺陷，应选择优良的伸缩缝弹塑体材料。
This paper studied the mechanical properties, expansion and contraction and road performance of backfill material made by waste gypsum from TiO 2 production and fly ash.
通过对钛石膏-粉煤灰复合路基回填材料的物理力学性能、胀缩性及路用工程性能的试验研究，探索了钛石膏-粉煤灰回填材料的工程性质和性能。
This paper studied the mechanical properties, expansion and contraction and road performance of backfill material made by waste gypsum from TiO 2 production and fly ash.
通过对钛石膏-粉煤灰复合路基回填材料的物理力学性能、胀缩性及路用工程性能的试验研究，探索了钛石膏-粉煤灰回填材料的工程性质和性能。
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