An optimal guidance law for reentry vehicle with high altitude maneuvering on downward phase is studied.
研究了在降弧段进行高空机动的再入飞行器最优制导律。
Based on the comparison between MVP data and fixed CTD data, it was found that the data in downward phase of MVP was relatively reliable.
通过对MVP和定点温盐深仪所测数据的比较分析，发现MVP下降阶段 数据较为可信。
If it appears that it cannot, you have few alternatives: extend the length of the phase, or negotiate the scope of the Backlog downward.
如果这看起来不可能，您还有几个可选的方法：延长这个阶段的长度，或者协商待完成工作向下的范围。
But at the same time, we must be soberly aware that China's economy is in the three phase of the superposition of the critical period, the larger downward pressure on the economy.
但同时也必须清醒认识到，我国经济正处在“三期叠加”关键时期，经济下行压力较大。
Using a vertical downward section in which flow is very slowly, water holdup in oil-water two phase flow is measured, and a good result is obtained.
通过采用一缓流的垂直下降段，测量油水两相流中的含水率值，获得了好的结果。
The void fraction in downward gas oil two phase flow in vertical tube is measured with the combined method of horizontal downward vertical tube for the two flow regimes(bubbly and slug flow).
采用水平—下降管组合法测量了垂直下降管内油气两相流动在泡状和弹状流下截面含气率的值。
Provided that the phase propagates downward, the wave transports energy and westerly momentum upward.
在波动位相下传的情况下，波动向上输送能量和西风角动量。
Provided that the phase propagates downward, the wave transports energy and westerly momentum upward.
在波动位相下传的情况下，波动向上输送能量和西风角动量。
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