采集

With the aid of the high-speed camera and the LC acceleration sensor,researches are made into the strike and the run-through of an object in the two-dimensional particulate matter under the effect of the acceleration of gravity q.

笔者用高速摄像和LC加速度传感器进行采集的方法研究了在重力加速度g作用下的物体在二维颗粒床中的撞击和穿透过程。

Because of fault in operation and the precision of instrument,the defect error and accidental error are involved in the procession of data collection,the defect error that are brought by mistakes of people and influence of outside is large,the contingency error that are inevitably and randomicity is little.

在采集数据过程中，由于某些操作或仪器原因，往往使数据中包含人为错误，或外界干扰产生的量值较大的"过失误差"以及不可避免的带随机性质且量值较小的"偶然误差"。

A scheme of double-channel amplification was brought up, and both hardware and software solutions according to the specific condition of PCI2008A DAQ board adopted in the system were provided. The experimental result indicated that adopting this scheme, the system has been raised an accuracy grade.

提出了一种双通道放大的前端处理方法，并针对系统采用的PCI2008A型采集卡的具体情况，给出了具体的硬件和软件解决方案，实验结果显示采用该方案后，系统精度提高了一个等级。

a kind of design project of multifunction electric power quality gauged instrument based on virtual instrument is put forward in this article.this system integrates virtual instrument programming and power electronics together,to realize diverse signals of current electric power quality field allin one.the integrated signal generator unit which carries out the collection of high speed digital data,d/ a conversion and analog output in four channels,unsymmetrical synchro control fifo etc.by fpga are introduced,the flow of electric power system various signal which generates by vc programming is elaborated,and the structural design of signal amplification unit is analysed.the experiment text result shows that this gauged instrument has attained current advanced high grade of accuracy and it will accelerate the steps of electric power quality calibration because of its accuracy and versatility.

摘 要：提出一种基于虚拟仪器技术的多功能电能质量标定仪的设计方案，采用虚拟仪器编程技术和电力电子技术相结合实现集目前电能质量领域的多样信号于一体。介绍采用fpga实现高速数字量采集、d/a转换及4通道模拟量输出、非对称同步控制fifo等的集成信号发生单元，阐述利用vc编程实现的电力系统多样信号的产生流程，分析信号放大单元的结构设计。实验测试结果表明该标定仪达到目前先进的高精度等级，由于其准确性和多功能性将加快电能质量标定的步伐。

In the fifth part, we use the methodology to implement a Acid Rain PH value collector.

第五部分利用已有的理论和物理平台实现了酸雨PH值采集系统，并作为本平台的实际应用。

The acidophile s composition and community structure in the sediment was studied with 16S rDNA clone library and denaturing gradient gel electrophoresis.

采集了酸性矿山废水区域酸性沉积物样品，运用16S rDNA克隆文库技术和变性梯度凝胶电泳技术，研究了沉积物中的嗜酸菌类群以及它们的群落结构。

In this study, 252 acidophilic actinomycetes were isolated from 10 acidic soil samples collected in Jiangxi Province, Yunnan Province and Beijing with dispersion and differential centrifugation approach.

实验中，从江西、云南、北京采集的10份酸性土样，采用分散和差速离心法和常规分离方法分离出嗜酸放线菌252株。

At the same time, Liu Zhifeng also pointed out that in our country to carry out research and international standards of vacant housing indicator system to further strengthen the housing ACIS data acquisition and analysis of early warning forecast information.

与此同时，刘只酆还指出，在我国开展研究和国际标准的空置住房指标体系，进一步加强住房预报数据采集和分析的预警预报信息。

Methods A hydrophone was used as energy converting equipment to collect wave of acoustic pressure in the field of ultrasound.

采用水听器作为换能器，通过采集超声信号在空间声场内一点的声压波形。

Based on the working principle of data acquirement and process, we develop the application software with visual basic6.O.

在确定数据采集和处理的原理基础之上，进行计算机软件的设计。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。