本文针对初温、流量一定且不循环使用的低温余热，提出确定其动力回收系统参数的热力学原则。
Thermodynamic principle of heat recovery system for low temperature waste heat with a given initial temperature and flow and for non-cycling operation is proposed in the article.
针对初轧均热炉生产调度普遍存在无科学规范性的现状，利用系统工程原理和网络技术对其进行优化调度。
To account of the absence of scientific norm in the soaking pit management of blooming mill, the optimization of the management is carried out by means of system engineering and network theory.
针对控制加沙地带的哈马斯用导弹袭击以色列的报复，2009年初，以色列对加沙发动了上百次空袭。
Early in 2009, Israel carried out hundreds of air strikes against targets associated with Hamas — the group that controls Gaza — in retaliation for rocket attacks into Israel.
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