常规方法

Advancing wavefields by the degenerate migrators is actually a linear interpolation between two splitstep terms in the wavenumber domain.

退化的Fourier偏移算子通过在两个分裂步项之间作波数域线性插值来实现波场延拓，每延拓一层需要比常规的SSF地震偏移方法多一次快速Fourier变换。

The computationally efficient degenerate migrators extend the splitstep Fourier method to steeper propagation angles in largecontrast media at the cost of one more Fourier transform for each extrapolation step.

这种退化偏移算子只用快速Fourier变换进行波场延拓，将常规的Fourier分裂步地震偏移方法推广适应强速度横向变化介质和大角度传播波场。

To reduce this problem,we developed a new mounting technique to replace Hoyer's mounting medium:non-vis...

对比试验显示，新装片技术可使植物碎片卷曲率从10.4%下降至3.8%，重叠率从25%下降至8.1%，说明新装片技术在减少植物碎片卷曲和重叠方面明显优于常规装片方法。

Microhistological fecal analysis is an important technique for investigating herbivore diets.The conventional mounting technique uses Hoyer's mounting medium to seal the plant fragment to the slide.

粪便显微组织分析法是研究食草动物食性的主要方法，其常规装片技术需要使用Hoyer's装片介质对植物碎片进行封片，而Hoyer's封片液的粘性易导致植物碎片在装片过程中发生卷曲和重叠，影响植物碎片的识别效果。

Using nanogram quantities on total RNA, the usage of dIVT protocol preserved about 70% information of gene expression when compared with those detected by the one-cycle T7 RNA linear amplification.

从纳克量级的总RNA起始，本方法和常规的RNA单轮线性扩增法相比，仍然准确地保留了约70%的基因表达信息。

The rock mechanics parameter s,such as Yangs modulus and Poisson's ratio,are determined on the basis of surface fracturing treatment pressure and instantaneous shut-in pressure during PAD stage.

应用常规的地面压裂施工压力资料和前置液阶段的瞬时停泵压力测试等资料，初步探讨了求取储层原位岩石力学参数的新方法。

The experiment data of paramecium from Gause was used to investigate the efficiency of the method. And the twelve nonlinear real examples from "Agricultural Experimental Statistics" written by Mo Huidong were used to compare the difference between results fit by the Excel and the linear transformation method, respectively. The result showed that the Excel fitting method is not only simple and efficient for the parameter estimation but can fit various complex nonlinear equations also.

采用Gause的4组草履虫数据，研究了用Excel的&规划求解&工具进行非线性方程拟合的有效性，并以莫惠栋的《农业试验统计》一书中的12个非线性方程实例，比较了用Excel拟合与用常规线性转换方法拟合的差异，结果表明：用Excel进行非线性方程的拟合不仅简单易行、获得更优的参数估计，而且可以拟合各种复杂的非线性方程。

Cephalometric radiographs were studied and measured by computer systemwith Steiner, Downs and Tweeds methods and the normal measurement values were established. All the data was analyzed statistically and compared with the values from Guangdong , Beijing, Shanghai, Xian, Tianjin,Harbin.

拍摄常规X线头颅侧位片，按Steiner、Downs及Tweed分析方法进行计算器化X线头影测量，得出本地区的正常测量均值，对所有测量值进行统计学处理及分析，并与广东、北京、上海、西安、天津、哈尔滨的测量值进行比较。

Stens were evaluated to be patent, while 1 stent was not patent. Conclusion: Sixteen slice spiral CT scan of the cardiac coronary artery is a noninvasive,simple and good method. Coronary calcium score and coronary artery stenosis can be evaluated within one study. The patency of stents could also be evaluated. But more experience in more cases of comparative study should be obtained to prove the accuracy of the evaluation of stenosis of coronary arteries and patency of stents.

十六层螺旋CT冠状动脉CT动脉造影(CTA，computer tomography angiography)是一种无创、简便、优良的冠状动脉成像方法，可一次检查完成冠状动脉钙化积分和狭窄评价，也可评价支架通畅情况，但其评价狭窄及支架通畅的准确性有待做更多病例的CTA与常规冠状动脉造影的对照研究。

The conventional ISAR imaging method is based on the instantaneous Doppler of scatterers.

常规的ISAR成像方法是利用散射点的多普勒频率来成像。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。