薄层

Theoretical analysis and calculation on the acoustic properties of perforated panel absorber were described herein.

文章对穿孔板背面紧贴吸声薄层时的声学特性进行了理论分析与计算，并与实验结果作出比较。

To detect recombinant MUC1 with histag by flat-bed isoelectric focusing and provide reference for purification of recombinant MUC1 without histag by ion exchange chromatography.

目的 采用薄层等电聚焦方法检测含有组氨酸尾的粘蛋白表位疫苗（简称重组MUC1），为不含有组氨酸尾的粘蛋白表位疫苗的下一步离子交换层析纯化蛋白提供参考依据。

The results show that the v L curve obtained by new arrangement mode through measuring boreholes parallel and perpendicular to the strata has a very good regularity and overcomes the flaw of the v-L curve disorder change caused by conventional arrangement mode.

测试结果表明：顺层和垂直于岩层的测孔布置方式获得的纵波波速v与孔深L的曲线规律明显，克服了常规布置方式带来的v-L曲线无序变化的缺陷，可容易确定出倾斜薄层弱结构松动圈范围。

The results show that the v p- L curve obtained by new arrangement mode through measuring boreholes parallel and perpendicular to the strata has a very good regularity and overcomes the flaw of the v p- L curve disorder change caused by conventional arrangement mode.

测试结果表明：顺层和垂直于岩层的测孔布置方式获得的纵波波速 v p与孔深 L 的曲线规律明显，克服了常规布置方式带来的 v p- L 曲线无序变化的缺陷，可容易确定出倾斜薄层弱结构松动圈范围。

Methods:The MSCT datas of 65 mechanical intestinal obstructions confirmed by operation and pathology were collected and reconstructed with multiplanar reconstruction technique,including 43 cases underwent plain scan;the remaining 22 cases underwent plain and contrast-enhanced scan.Results: Contrast to operation and pathology,there were 25 adhesions,24 neoplasms,5 bowel torsions,5 bezoarhs,4 intussusceptions,2 Crohn's diseases in 65 mechanical intestinal obstructions,the diagnostic accuracy of MPR in mechanical intestinal obstruction was 100%,and the accuracy of the pathogeny was 84.6%.

以往在肠梗阻的诊断中应用最多的为腹部X线平片，但因其信息量不足，对大部分病人不能提出肯定诊断，且对梗阻的病因及病变肠管的血供都无法判断。16层螺旋CT在肠梗阻的诊断中具有明显优势，快速、薄层扫描可得到高质量的各向同性后处理重建图像，在显示肠壁、肠腔和周围结构等方面具有较大优势，有利于肠梗阻的梗阻部位及病因、并发症的诊断。

In flat dip layer, the seam thickness control the stability of the wall rock, the thick-bedded hard rock is stable than the thin-bedded hard rock.

岩层厚度在缓倾斜时对围岩稳定起控制作用，厚层硬岩整体稳定性好于薄层状硬岩。

The results show that the white thick-bedded siliceous rocks have high contents of SiO2 and Al2O3 and high ratios of Al/ and Al2O3/(Al2O3+ Fe2O3). The ∑REE are low, and the North American shale-normalized REE patterns are characterized by enrichment of LREE and absence of Eu and Ce anomalies, which suggest that the white thick-bedded siliceous rocks might have been formed in the continental margin environment and affected significantly by terrigenous constituents. The anatase-rich siliceous rocks have high contents of TiO2, Fe2O3, Cu and V but low Al/(Al + Fe+ Mn) and Al2O3/(Al2O3 + Fe2O3) ratios. The ΣREE are high, the North American shale-normalized REE patterns are obviously characterized by left-oblique to flat styles of curves and slight negative Ce anomalies, implying that they might have been formed in an oceanic ridge environment.

研究结果表明，呈厚层状产出的无矿白色硅质岩具较高的SiO2、Al2O3含量及Al/、Al2O3/(Al2O3+Fe2O3)比值，稀土元素总量很低，其北美页岩标准化配分模式为向右倾的曲线，无明显铈异常和铕异常，表明其形成于受陆源影响的大陆边缘构造环境；赋矿岩系中薄层状富钛硅质岩的TiO2、Fe2O3、Cu、V含量较高，但Al/、Al2O3/(Al2O3+Fe2O3)比值较低，稀土元素总量较高，北美页岩标准化曲线为明显左倾型－平坦型，具弱的负铈异常，表明其形成于洋脊及附近环境。

Based on field conditions and soil characteristics, a new kind of horizontal drainage material is adopted, which is composed of flexible permeable pile and thin sand layer.

根据场地条件和土层特性，采用软式透水管与薄层砂垫层组成的新型水平排水体，并进行精心设计和施工。

After deriving the equatio ns of reflectan ce spectrum of compressional and shear waves for thin beds at an arbitrary incid ence angle , the equations of reflectance spectrum of compressional wave for a thin be d are reduced at zero incidence angle .

通过采用实际地震子波为输入子波，对单个楔状体薄层、互层组楔状体地质模型进行了纵波合成记录制作。

Through the transition from water thin-layer scattering to thick-layer scattering, scattering field and depolarizability of laser in water are tested, and simplified field strength formulas for forward and backward scatterings are derived.

然后从薄层散射过渡到厚层散射，检测了激光在水中的散射场和退偏振度，并对前向散射和后向散射导出了简化的场强计算公式。

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。