他们还提到，由于担心以前的全细胞百日咳疫苗日渐增强的致反应力，因此不推荐对6岁以上年龄的青少年使用。
Previously vaccination against pertussis was not recommended for those over 6 years of age, they add, because of concerns of increased reactogenicity of the whole-cell vaccines.
弹性模量随应力和驱动电压的增大而逐渐增大，但电压升至一定程度时将基本趋于稳定。
Stiffness increase with the increased of compress stress and driven voltage, and became stable when the driven voltage up to some degree.
随着核壳粒子橡胶相尺寸的减小，改性体系的冲击强度逐渐增加，内应力降低，但对体系的剪切强度影响并不显著。
With the decrease of core sizes, the impact strength modified systems increases and the internal stress of modified systems decreases apparently, while shearing strength changes slightly.
地震前，震中区周围应力场发生转向，由正应力区变为负应力区，同时正应力的量值逐渐增大。
The stress field of periphery of the epicentral region transformed from positive stress into negative stress, and the value of the positive stress increased gradually before the earthquakes.
研究结果表明，当应力大于一定程度时损伤发生，且随应力增加而逐渐增大。
The results showed that the damage in nodular cast iron happens when the applied stress is more than a certain extent, and the damage value increases with stress.
结果表明，杆柱中的最大振动位移随深度增加量值逐渐增大，最大动应力随深度增加而逐渐减小。
The results indicate that the maximum displacement increases, and the maximum dynamic stress decreases with depth.
唐山、丰南附近，应力降较低，约2巴。从这两地向东北、西南应力降逐渐增高到34巴。
The results obtained indicate that the stress drop gradually increases with distance from 2 bars at Tangshan and vicinity toward the northeast and southwest to a maximum of 34 bars.
隧道工程开挖深度有逐渐增加的趋势，深部岩石具高强度及高应力环境。
The Overburden of tunnel construction is increasing recently. Rocks in the depths have high strength and high stress condition.
得出了含表面裂缝和反射裂缝路面体的应力强度因子均随着裂缝长度的增加逐渐增大。
It is obtained that the SIF increases with the length of the surface crack or the reflective crack enlarging in the asphalt pavement.
必须用逐渐增加重量来使肌肉的适应力增大，从而对训练产生反应。
Must gradually increase the weight to increase the resilience of the muscles, which respond to training.
结果表明，杆柱中的最大振动位移随深度增加量值逐渐增大，最大动应力随深度增加而逐渐减小。
The results indicate that the maximum displacement increases, and the maximum dynamic stress decreases with depth. The changing of maximum dynamic stress with depth…
结果表明，杆柱中的最大振动位移随深度增加量值逐渐增大，最大动应力随深度增加而逐渐减小。
The results indicate that the maximum displacement increases, and the maximum dynamic stress decreases with depth. The changing of maximum dynamic stress with depth…
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