测差

The pilar difference measurement and instrument comparison is basic to the quality and usage of the recorded geomagnetic data.

文章摘要：墩差测量和仪器比测是地磁观测中最基本的工作，直接影响到观测资料的质量和使用价值。

The hydrated products and pore size distribution of high road fly ash cement s were studied by means of XRD,DTA,Mercury porosimeter,etc.

采用X -射线衍射、差热分析、微量热计及压汞测孔仪对公路粉煤灰水泥的水化产物、水化放热曲线、孔尺寸分布进行了研究。

The thermal decomposition of tyrosine was studied by the methods of DTA and TG. The molecular geometries of tyrosine, intermediates and the products were optimized by AM1 method. The thermolytic mechanism is put forward through the results of the experiment and the calculation.

用差热曲线、热重曲线法测得了酪氨酸的热解曲线，用AM1方法优化了酪氨酸及其中间产物和产物分子的构型，计算了有关分子的键长和键级，通过对其热解过程的分析及AM1研究的结果，首次提出了酪氨酸的热解机理。

The author has accomplished the following tasks:1. presented the general scheme of the profile measuring system;2. presented four methods of laser collimation, realized 3 of them with the software of ZEMAX, and meted the requirement of the system design;3. realized the laser beam expanding from point-laser to line-laser wide enough to cover the flange trackside;4. after image grabbing and processing, picked up the profile of the train wheel.

作者独立完成的工作包括： 1、提出了曲面测量的光学系统的整体方案； 2、提出了四种激光扩束的方案，用光学设计软件ZEMAX完成了其中三种的设计；经过像差分析和追迹，达到了准直扩束的要求； 3、点光源到线光源的单方向扩展，达到了覆盖轮缘踏面的要求； 4、通过实验采集图像和图像处理，提取出被测轮缘的轮廓。

With the wavelength dependence of the Verdet constant, a large current could be measured by way of measuring the difference of th...

利用光纤维尔德常数随光波长变化这一特性，通过测量两种光波旋转的角度差，获得了大电流的测量值。

The main differences among these three test methods were compared, and correlation of evaluation among them were also discussed. The test results showed that the difference of test results is between 0.5 and 1.0 grade, and AATCC test method for wet crocking test showed more color transfer than the other two test methods.

结果表明，对于纺织品耐摩擦色牢度，三种测试方法所测得的耐摩擦色牢度值之间存在着一定的差异，虽然只有0.5~1.0级之差，但对于耐摩擦色牢度是否合格是至关重要的，AATCC湿摩擦的测试结果比其他两种稍显严重。

Its specialty is that the double differenced carrier phase and carrier phase-rate measurements have been used, in order to maintain the measurement noise is white and simplify system model.

其特点是：直接针对每组双差载波相位和相位率，即保证了量测噪声为白噪声，简化了系统模型，又能应用于多周跳发生的场合。

It is introduced that with two total station instrument s after transforming to set up the station arbitrarily,the deduction for formula and the calculation for error are made to evaluate the differences in elevation with the subtending measurement of trigonometric leveling.

介绍了用两台改造后的全站仪任意置站的方法进行三角高程对向测量求取高差的公式推导和误差计算，论述了用三角高程测量代替二、三等水准测量的可行方法，测量时不必量取仪器高、目标高，减少了三角高程的误差来源，加快了施测速度。

It is introduced that with two total station instruments after transforming to set up the station arbitrarily,the deduction for formula and the calculation for error are made to evaluate the differences in elevation with the subtending measurement of trigonometric leveling .

介绍了用两台改造后的全站仪任意置站的方法进行三角高程对向测量求取高差的公式推导和误差计算，论述了用三角高程测量代替二、三等水准测量的可行方法，测量时不必量取仪器高、目标高，减少了三角高程的误差来源，加快了施测速度。

Transfer the filtrate to a tared beaker, evaporate to dryness without charring, dry at 105 for 1 hour, cool in a desiccator, and weigh: the difference between the weight of the residue and the weight obtained from a blank determination does not exceed 12.5 mg (0.25%).

将滤液转入已称重的烧杯，105°下干燥1小时，在不烧焦的前提下使其蒸发至干，在干燥器中冷却，称重。测得的残渣重量与空白测定中得到的残渣重量之差不超过12.5 mg (0.25%)。

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在，'歼灭战perfuming自己与胡努特，那麼，他来到和SAT 。