空平意思是：空头主动平仓 空头平仓的简称。
提出并解析了等空时双平推流循环流动的数学模型。
Mathematical model of recycle tubular flow with equal space time is pro-posed in this paper.
由于配备IMU/DGPS系统，在一定的基站范围内可以在无控制或少量控制点的情况下进行空三平差，极大地减轻了摄影测量外业控制工作量，缩短了生产周期，提高了作业效率。
With IMU/DGPS system, it can process bundle adjustment successfully with less GCPs or even without GCPs with a GPS base station located in a certain scope.
红色的蜡烛线表明一个下降趋势：你可能希望增加你的空单并平掉多单。
Red candles indicate a downtrend: you might want to add to your short position, and exit long positions.
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