采样

A new phase difference algorithm based on digital sampling is proposed.

介绍了一种基于电力线数字化采样计算电压相位的方法。

Phase theory analysis of spatial integral sampling provide theoretical basis for under sampling aliasing reduction.

空间积分抽样相位理论分析为消减欠采样产生的折叠混淆效应提供了理论依据。

Considering strict and complex phase requirement, phase locked loop was used for precise phase shifting. Through Embedded logic analyzer the timing was sampled and verified. The driving timing generator of CCD camera with adjustable integral time was implemented on the CCD circuit board.Frame transfer CCD; Integral time ; Phase locked loop ; Embedded logic analyzer

考虑到CCD驱动时序复杂、相位要求严格，提出运用锁相环技术进行高频信号的精确移相，用嵌入式逻辑分析仪对时序进行采样验证，在CCD电路板上实现了积分时间可调的CCD空间相机驱动时序。

Duxbury added that these questions and more might be answered by a future mission in 2011 to collect samples of Phobos and return them to Earth.

克斯伯里补充道，2010年将开始福波斯样采样任务，采集的样本送回地球后，这些问题或者更多其他问题都将得到解答。

The sampling representativeness is made based on the individual deviation of phosphate rock by statistical method .

采用统计方法，针对原料磷矿个体差异，解决磷矿采样的代表性。

A microcomputer is used to communicate with the controller of electron probe to control the spectrometers and the sample stages as well as the scalers. Data of X-ray intensity are acquisited when the sample stages are scanning in a certain step and time period. X-ray images were formed and shown in colors or in 3 dimensions, and have no distortion at low magnification. Hidden zonate phenomena of a picrite were found.

摘 要：用微型计算机与电子探针控制机通讯，实现对各道波谱仪和样品台的实时控制，以及对各道定标器的数据采集；在选定的样品区域上设定采样步长和时间，边移动样品台边采集各道X射线强度；用伪彩色、三维视图和内插放大等方式显示图像，解决了低倍X射线像失真问题，观察到了辉石的隐环带等现象。

This uniform resample of data points in rectangular region and fitting of piecewise smooth B-Spline surfaces are explored.

研究了矩形区域内数据点的重新均匀采样以及光滑分片B样条曲面的拟合问题。

Evaluation of the approach is implemented using a simulated piecewise smooth signal.

结果显示特别是在信号采样序列的长度有限时，采用本文方法可以获得比中值估计方法更准确、更可靠的白噪声方差估计。

Execute Shutdown and Restart to clean piercer.

执行关机冲洗程序，然后重新开机清洗采样针。

The distribution of gas-solid two-phase flow in the axial guide vane cyclone tube was measured with five-orifice pitot tube and by means of isokinetic sampling method.

为研究颗粒分离机理，提高分离性能，采用五孔球探针测试仪及等动采样法对轴流导叶式旋风管内气固两相流速度与压力分布进行了测量，并分别对不同导流锥和排尘结构参数下的纯气流流场及颗粒浓度场分布进行了对比分析。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。