The functions of nonmetal materials to improve the parameters of satellite, reduce the mass of satellite structure and increase the effective payload of satellite were stressed.
强调了非金属材料在提高卫星性能、减轻卫星结构质量，以及增大卫星有效载荷方面的作用。
Research result shows that system can carry out effective surveillance and measure of the data such as train speed, direction, unusual condition and payload.
研究结果表明：系统可对列车运动速度、运动方向、列车异常情况、列车有效载荷等数据进行有效监测。
Research result shows that system can carry out effective surveillance and measure of the data such as train speed, direction, unusual condition and payload.
研究结果表明：系统可对列车运动速度、运动方向、列车异常情况、列车有效载荷等数据进行有效监测。
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