Finally , a case simulation and application in china aviation life - support research institute were developed in which a quadratic programming model was founded and solved by a two - phases method 最后，从中国航空救生研究所某制造车间提取了一个加工实例，建立了一个二次规划的数学模型，采用两步法进行求解。
The active vibration control aimed at aircraft empennage has huge practical values in the aspects of adding the fatigue life of vertical tail , increasing the capability and availability of the aircraft , reducing the through - life - support costs and so on 飞行器垂直尾翼的振动主动控制对于提高尾翼的疲劳寿命、飞行器的机动性以及减小飞行器的维护成本具有较大的实际意义。
A kind of networking and adaptive ecological economy operated according to the principles of ecological - economics of “ totality , co - evolution , recycling and self - reliance ” , having high efficiency of resource use , and harmony with surrounding life - support ecosystem 循环经济是按生态经济原理组织起来的基于生态系统承载能力、具有高效的经济过程及整体、协同、循环、自生功能的网络型、进化型复合生态经济。
Consciously avoiding habitat destruction and mitigating the effects of land use change , reducing the direct exploitation of plants and wildlife , and slowing climate change can help us stop weakening the very life - support systems we depend on 自觉地避免生态环境的破坏，减轻土地利用方式变化的影响，减少对植物和野生动物的直接开发利用，减缓气候变化，这些都可能能够帮助我们阻止我们所仰仗的唯一生命支持系统的进一步弱化。
By 2010 , set up two technical development centers for mass assembly vehicle of national level of the dongfeng commercial vehicles and peugeot cars ; 2 - 3 parts and components technical development centers of national level of the dongfeng motor co . , ltd , tri - ring group and etc . ; 20 parts and components technical development centers of provincial level of dongfeng industrial co . , ltd , tongda company , xiangyang automobile bearing co . , ltd , jiu long group , hubei aviation life - support technology co . , ltd and etc 到2010年，初步建成东风商用车、神龙轿车两个具有国际竞争力的国家级整车技术开发中心，东风汽车有限公司、三环集团等2 - 3个国家级零部件技术开发中心和东风实业公司、通达公司、襄轴公司、九龙集团、中航救生科技公司等20个省级零部件技术开发中心。
