查询词典 optional sampling

In July 2006, the diurnal activity rhythms of 13 heads of captive Qinling golden takin were observed in Shaanxi Provincial Centre for the Breeding and Conservation of Rare Wildlife at daylight (from 9:00 am to 4:00 pm in July). The behavioral ethnogram was identified through observation at the sampling site, with the behaviors of golden takin recorded at 5 min interval using instantaneous scannable sampling method.

2006年7月，在陕西省珍稀野生动物抢救饲养研究中心内采用瞬时扫描取样和全事件抽样法对13头圈养秦岭羚牛的昼间(自早09：00至下午04：00)活动规律进行了观察。

By sampling echo signal demodulated and A/D transform, sampling value is transmitted to SCM for compare, division, calculation, and exporting gain code to control signal range; furthermore controlling the AGC circuit, realizing amplification control to echo signal, consequently stabilitate the signal range in a window for the later circuit.

通过对检波后的回波信号进行采样，经过A/D变换，采样值送入单片机内部进行比较、判别、计算，然后输出可控制信号幅度的增益码去控制AGC电路的受控级，实现对回波信号的增益控制，从而使得输出信号幅值稳定在一个窗口内，供后续电路处理。

According to the characteristics of the wayside frequency-shift signal spectrum,and based on a great number of computer emulators and real-time experiments and on non-complete periods sampling,the feasibility of applying the under-sampling technology to the real-time FFT analytical method of tramroad FSK signal is validated.

针对轨道移频信号的频谱特点，采用欠采样技术对轨道移频信号进行非整周期的采样，经过计算机仿真实验，验证了基于非整周期采样方法对轨道移频信号进行实时傅里叶变换分析检测的可行性，证明采样方法满足检测指标的要求。

And, of course, all the alternatives of biareal plot sampling are possible for triareal plot sampling .

当然，两种面积样地抽样的所有可选方案对三种面积样地的抽样都适用。

The wavelet time-frequency properties of the uncracked rotor and the cracked rotor were discussed by the continuous wavelet time-frequency analysis algorithm. A new algorithm using the wavelet time-frequency analysis algorithm to detect the crack was proposed. The influence of the sampling frequency on the wavelet time-frequency analysis algorithm was analyzed through the numerical simulation research; the valid sampling frequency was presented.

利用连续小波时频分析方法，讨论了裂纹转子与无裂纹转子的小波时频特性，提出了利用小波时频分析方法识别裂纹的新方法；数值仿真研究了采样频率对小波时频分析方法的准确性和有效性的影响，并给出了建议性的采样频率。

Auto-sampler to promote traditionally experiential sampling approach to forecasted sampling approach. Therefore, we can accurately evaluate the change of dissolvable and undissolvable pollutants phenomena in the rainstorm events.

自动采样器结合，将传统经验采样方式提升为预测采样方式，并评估在单场雨中溶解性与非溶解性污染物所产生的污染与浓变化。

Ammunition sampling is a special conveyance problem with unfull loading, transportation with one vehicle, much more sampling point, constituted a special problem of TSP , called "mimetic traveling salesman problem".

弹药采样问题是一类特殊的非满载车辆运输问题，单车运输，采样点多，构成了一类特殊的TSP问题，称之为类TSP问题。

In chapter four"The application of generalized sampling theorem to data compression", the qaulity of approximation coefficients is proved and a methodology of discrete cosine transformation combined with ununiform sampling is put forward.

第四章&广义采样定理在数据压缩中的应用&，对广义采样定理一中的展开式系数性质进行了证明，在此基础上提出了一种结合非均匀采样的离散余弦变换方法。

Only average percentage of Al in episode days is high than that in nonepisode days.The A/C ratio of the cation or anion in PM10 is greater than 1 for every sampling situation. It was highly correlate between NH4+ and NO3-, NH4+ and SO4-2 of PM10 particle among four sites. The NR of each site was all 1. It means that the PM10 particle is acidulated during the sampling period and that phenomenon worth to be researched further in the future.

无论污染事件日、非污染事件日或日、夜间，各测站PM10上阴、阳离子当量比之比值均大於1；各测站PM10微粒中NH4+与NO3-间及NH4+与SO4-2间均呈高度之相关性，其PM10微粒之中和比值(neutralization ratio；简称NR)均小於1，表示各测站在本研究之采样期间，其PM10微粒均偏酸性，其原因未来值得深入加以探讨。

This article is based on the research of " the helicopter ' s aviating load - data harmonized loading and sampling technology ". we studied the question of real - time in the helicopter ' s aviating load - data sampling system , and finally realized the real - time extension of the system which based on windows2000 to improve the real - time performance of the system

直升机飞行载荷数字化协调加载及数据采集技术研究，对数据采集系统中的实时性问题和实时扩展技术展开深入研究，最终实现了基于windows2000测控系统的实时扩展，并将其应用于实际的采集系统研制和开发中。

Pachomius manual labour was organized as an essential part of the monastic life; and since it is a principle of the monks as distinguished from the mendicants, that the body shall be self-supporting, external work of one sort or another has been an inevitable part of the life ever since.

根据圣pachomius体力劳动组织作为一个重要组成部分寺院生活；以来，这是一个原则的和尚，作为有别于乞丐，该机构应自支撑，对外工作的这种或那种已一个必然的一部分，生活至今。

In order to study the effects of parametrical rolling on the ship movement and tilts, in allusion to ship's navigating in regular following waves, the equation of ship rolling motion is transformed into normal Mathieu equation by proper variable replacement when strong parametrical excitation in restoring moment varied according to sine or cosine wave.

为研究参数横摇对船舶运动和倾覆的影响，通过对船在规则波上随浪航行时，恢复力矩中出现的1个以正余弦规律变化的强参数激励项进行适当的变量置换，将船舶的横摇运动方程转换成标准形式的Mathieu方程。