The best scanning time is about 74 seconds. On continuing observation, the scanning interval should be a little longer and it will not lose the time of observation.
扫描开始时间应以74秒前后为佳，持续观察时，扫描间隔时间宜长，且不会错过观察时机。
Effect distribution curves of scanning interval and defect sizes on detecting results are obtained by experiment, and it can supply references to detect defect sizes reasonably.
通过实验，给出了缺陷尺寸和扫描间隔等因素对检测结果影响的分布曲线，为合理提取缺陷尺寸提供了参考。
The white noise scanning test was conducted before the shaking table test and repeated at every interval of each test to obtain the law of the basic frequency vary with the time.
在模拟地震试验前和各阶段模拟地震试验后均对模型进行了白噪声扫描试验，考察了模型的频率变化规律。
According to the feature of SLS, the parameters of interest are layer thickness, hatch spacing, laser power, scan speed, work surroundings temperature, interval time and scanning mode.
根据SLS加工工艺的特点，研究的工艺参数包括：层厚、扫描间距、激光功率、扫描速度、环境温度、层与层之间的加工时间间隔和扫描方式。
Aimed at the clutter overlap of PD system applied to the ground-based low altitude radar, a designing method of a different PRF with respect to each interval of scanning time was proposed.
针对地面低空雷达应用PD体制的杂波重叠问题，提出了分时分重频的设计方法。
Aimed at the clutter overlap of PD system applied to the ground-based low altitude radar, a designing method of a different PRF with respect to each interval of scanning time was proposed.
针对地面低空雷达应用PD体制的杂波重叠问题，提出了分时分重频的设计方法。
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