在保证强度、刚度条件下，应尽量减轻破碎机机架的重量。
During the guarantee strength, stiffness condition, should try to reduce crusher frame weight.
对于新型材料的粘接层而言，在保证强度的同时，应有良好的抗疲劳寿命。
As to sticking layer of the new materials, while guaranteeing intensity, mere should be good resisting fatigue life.
在保证强度满足要求的前提下提高回火温度可以提高钢的耐延迟断裂性能。
It was observed that the delayed fracture resistance of 30MnSi steel bars increases with tempering temperature at a sufficient strength.
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