以下为句子列表：
英文: A high-speed sampling system for echo signal of impulse GPR based on equivalent time sampling method is presented, and significant circuits including step sampling pulse generator and sampling gate circuit are designed.
中文: 摘要提出了一种基于等效时间采样方法的冲击型探地雷达回波信号高速采样系统，设计实现了等效时间采样的关键电路，包括步进采样脉冲发生器、采样门电路。
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英文: A new image sampling method and a device for transmission flow measuring are provided, and an edge detection method based on the semantic weight and threshold selection tactics based on the vision model are used to extract the contour, calculate the area
中文: 设计了一种新型的用于传输流量检测的图像采集方法和装置，并利用基于语义权值的边缘提取方法和基于视觉模型的阈值选择策略进行传输带上物质的截面轮廓线提取，计算物质截面面积和较短时间内的流量体积。
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英文: A purposive sampling method was used to recruit 54 mothers attending an In Vitro Fertilization/Embryo Transfer and Tubal Embryo Transfer program at an infertility center in central Taiwan.
中文: 本研究采立意取样，样本来自于中部某不孕症研究中心接受胚胎植入成功怀孕的幼儿母亲，共收取54位个案。
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英文: Abstract: In this paper,the double-speed synchronous sampling method is introduce d to the power system harmonic measurement, and the corresponding algorithm mode l of DFT is deduced.
中文: 文摘:将双速率同步采样法用于电力系统谐波测量，导出相应的DFT计算模型。
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英文: Based on the principle of molecular dynamics, a sampling method in Direct Simulation Monte Carlo (DSMC) method for molecular total and translational energy, and the heat flux vector nearby the wall boundary is proposed.
中文: 摘要从分子动力学出发，讨论了直接模拟蒙特卡罗方法中分子平均总能量、平均平动能以及边界热流密度的抽样方法。
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