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1·The problem is that these stable orbits would only exist once you have crossed the threshold of the event horizon, where time and space flow into one another.

问题是，只有曾穿过黑洞视界的临界才会存在稳定轨道，那里时间与空间会流入其他地方。

2·The CBO figures show that this is a big problem with the House plan, whose shortfall will balloon beyond the ten-year horizon.

国会预算办公室的数据显示众议院提出的这项计划有一个很大的问题，就是在十年之后他的赤字会迅速增加。

3·The problem is that this is not on the horizon.

问题是，这是不是在地平线上。

4·Identity of propagation modes of over the horizon radar (OTHR) is the problem which must be solved in the war.

超视距雷达传播模式识别是超视距雷达(OTHR)实战中必须解决的一个问题。

5·By using of Markov Decision Process, the finite horizon inventory, pricing and capacity expansion problem is discussed, and the optimal strategy of which is obtained.

建立了马氏决策过程模型，首先对有限阶段问题进行了研究，得到了其最优策略。

6·Its current control action is obtained by solving, at each sampling instant, a finite horizon open-loop optimal control problem, using the current state of the plant as initial state;

它的当前控制作用是在每一个采样瞬间通过求解一个有限时域开环最优控制问题而获得。

7·This method can be applied for the analysis of scattering problem of a target above the sea surface for HF over the horizon radar.

本文方法可应用于短波超视距雷达海上目标散射特性的分析。