单相

Based on the grey system theory,a grey assessment model of groundwater quality is built by combining the method of grey relational grade analysis and the method of single factor contaminant index .

以灰色系统理论为基础，把灰色关联度分析方法和单因子污染指数法相结合，构造了一种适合于评价地下水质量的灰色模型。

A new approach for measuring metal linear expansion coefficient is presented where CCD data collecting system is used and the single slit diffraction principle referred to in measuring the elongation extent to which the metal body expanses as the temperature increases.

根据单缝衍射原理，利用CCD数据采集系统来测量金属体随温度升高的伸长量，给出测量金属线膨胀系数的一种新方法。此方法采用CCD图象处理技术与计算机技术相结合，实现了数据采集、计算处理自动化。

The single valued condition of the model is determined and a tunnel model of similar simulative test is designed.

通过推导气固两相流动相似准则，确定了模型的单值性条件，设计了相似模拟实验的巷道模型并进行了磁化帘降尘模拟实验。

This paper analyses the cleaning tasks of the road sweeper which has special chassis and hydraulic control, then the joint control scheme of linkage and single-acting is drawn up. This article designs the software and hardware for the control system based on the core of AT89C52, and achieves the purpose of the control of the cleaning tasks. Then, the performance of broom is researched by experiment and in theory.

本文分析了专用底盘全液压清扫车的清扫作业任务，确定了联动和单动相结合的控制方案，设计了以AT89C52单片机为核心的软硬件控制系统，实现对清扫车清扫作业任务的控制。

From a raised frontal position, its expressive headlights and front panel, combined with the overhanging wheel arches, give the Tribu the look of a single-seater racing car.

从提出正面的地位，其表现头灯和前面板，与悬垂的轮拱相结合，给予Tribu的单座赛车外观。

Based on the research on the scattering of the Gaussian beam from single sphere, the intensity distributions of LGB beam in different propagation distance is analyzed. Without considering the relationship of scattering and phase shift, the beam coefficients is gained by the solution of scattering cross section, and the LGB is expanded in terms of the vector spherical harmonics as fundamental Gaussian beam. The scattering of the beam with orbital angular momentum from single sphere located on the propagation axis is studied.

在单体球粒子对高斯光束散射研究的基础上，分析了在自由空间不同传输距离LGB光束的光强分布情况，在不考虑散射和波束相移关系的情况下，将LGB作为入射高斯光束，通过对波束入射时的散射衰减截面求解得到波束因子，利用矢量球谐函数对入射高斯波束进行展开，从而研究了单球粒子在在轴条件下对具轨道角动量高斯波束入射的散射问题。

Considering the specialty of first break, this paper discussed edge detection and spline interpolation used for first break picking.

为此，从初至波的特点出发，提出了单道数据边界检测和样条插值相结合进行初至波自动拾取的方法。

A criterion to judge the goodness of a complex standard sample was given according to the beat node.

此外，本文还提出了一种从复杂标样中提取出单亚配位层背散射振幅和相移的方法，并从拍节的角度给出了一个判断复杂标样好坏程度的判据。

Analyse the technology principle of program tracking, step-in tracking, conical scan tracking and singleshot tracking, and contrast the advantage and disadvantage of them. Select program tracking and conical scan tracking considering performance and cost.

二、对程序跟踪、步进跟踪、圆锥扫描跟踪和单脉冲跟踪这四种自动跟踪技术的原理进行了具体的分析，并比较了它们各自的优缺点，从性价比的角度，选择了程序跟踪与圆锥扫描跟踪相结合的方式。

The source time function directivity is in accordance with the P waveform directivity, clearly showing that the nodal plane of strike 199° is the fault plane and that the earthquake ruptured unilaterally from the northeast to the southwest.

震源时间函数的这种方向性效应与P波的方向性效应相一致，清楚地表明：走向为199°的节面为断层面，地震是从东北向西南方向单侧破裂的。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。