LEO satellite communication system has the properties of larger power dynamic range, larger and faster changed doppler frequency shift and rapid fluctuation compared to ordinary communication system.

相对于一般的通信系统而言，低轨卫星通信系统具有信号动态范围大，多普勒频移大且变化速度快，信道起伏剧烈等特点。

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Due to the extensive pumping of groundwater, the range of phreatic fluctuation was enlarged and the suffosion was enhanced.

大量抽取地下水使地下水位波动的幅度增大，从而潜蚀作用增强。

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The two laser beam system has been used to measure the relative density of linen dust, with the feature of wide measurement range, good sensitivity and restraining the intensity fluctuation noise.

本文采用双光路激光系统，对亚麻尘的相对浓度进行了连续测量，具有测量范围宽、 灵敏度好、 抑制激光强度起伏噪声等特点。

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Compared with surprise resignations or crisis-related upheavals, planned CEO transitions lead to a narrower range of stock-price fluctuation for a company, both on the day of the announcement and six months later, according to research findings by FTI Consulting Inc.

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