儿童生存的自然环境得到改善。
The natural environment for the survival of children has improved.
新工艺的装配式钢龙骨具有工厂化批量生产、钢材重复利用率高、作业环境得到改善、施工更加规范等优点。
New process of fabricated steel keel has the characteristics of factory batch production, high steel recycling, big improvement of the working environment, more specification in construction, etc.
卫星在发射过程中的振动环境比其在轨运行时更为恶劣，整星隔振和卫星局部减振可以使卫星的动力学环境得到改善。
The whole-spacecraft vibration isolation technology and the spacecraft local vibration attenuation can improve the dynamic environment of the spacecraft.
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