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hydrography相关的网络例句

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与 hydrography 相关的网络例句 [注:此内容来源于网络,仅供参考]

From these researches as above, this paper found a new method to analysis salty soil road engineering properties by phase equilibrium theory, which provides a new angle of analysis on salty soil properties, experiment and engineering practice in these ways as follows:(1) Analysis the disadvantage of traditional salty soil experiment;(2) Analysis the disadvantage of current salty soil definition by phase equilibrium theory, and gives the chart of distinguish salty soil by the condition of hydrography and climate change;(3) Analysis the mechanics of subgrade frost boiling based on the change rule of liquid content;(4) Based on the change rule of ingredients content and volume in salty soil, analysis the mechanics of subgrade salt heaving and the restraining method by adding sodium chloride.

通过以上研究,本文初步建立了以相平衡理论为核心的盐渍土路用工程性质分析方法,该方法对盐渍土工程性质的理论分析、试验研究以及工程实践提供了新的研究思路与方法,具体体现在:(1)分析了传统的盐渍土试验存在的缺陷;(2)分析了现行盐渍土定义的不足,并以相平衡理论为基础,结合水文、气候条件的变化给出了判别盐渍土的诺谟图;(3)分析了盐渍土盐溶液含量的变化规律,并从盐渍土含液量变化规律出发,分析了盐渍土路基较非盐渍土路基翻浆严重的机理;(4)分析了盐渍土各固相含量及其体积的相变规律,并在此基础上分析盐渍土路基的盐胀机理,以及采用添加氯化钠来抑止硫酸盐盐渍土的盐胀机理

Methods MRCP were performed in 66 cases using a heavy T2 weighted MR hydrography technique, the images were post-processed by three dimensional maximum intensity projection and three dimensional surface shaded display Results The accuracy of MRCP for evaluating this disease was 100%, and for the cause of disease was 86.6%.

采用重T2加权MR水成像技术对66例患者行MRCP检查,图像经三维最大信号强度投影及三维表面遮蔽显示技术后处理。结果:水成像定位诊断率达100%,定位诊断率为86.6%,此技术可清楚显示胰胆管的形态,显示各种胆道疾病的异常改变,诊断正确性高。

The wide used method in weather, hydrography, etc., Kalman filter, is used to update the coefficients of the empirical model and expected to make better improvement. The test with the ionosound data of hourly values from 1986 to 1995 at Changchun illustrates that the root-mean-squre error of the forecasted values in one hour advance is 0.76 MHz in winter, 0.68 MHz in summer and 0.61 MHz in equinoxes, respectively.

尝试利用气象预报中常用的Kalman滤波方法对模型的系数进行实时修正,以提高预报精度,并对长春站1986-1995年近一个太阳周f0F2数据进行提前一小时预报试验。

Primary areas of research at the Institute include ocean management, aquaculture, fisheries, marine geoscience, marine environmental science, oceanography, and hydrography.

它还提供从美国乔治沙洲一直到加拿大北极地区的航海图等航海资料,并且还具备处理海洋环境突发事件的能力。

Agricultural drought on farmland or basin,which restricted by climate, geo logy,hydrography, soil moisture,plants, cultivation and water allocation etc.,is a complicated system.

农业干旱模型可用于农业干旱评价。本文对辽河流域六个区,海滦河流域九个区,黄河流域三个区,长江流域九个区P=50%,P=75%,保证率下农业干旱状况进行评价。

The source images of MR hydrography (heavy TSE-T2WI sequence) were reconstructed on workstation. Four 3D post-processing algorithms, including maximum intensity projection, surface shaded viewing, volume rendering and virtual endoscopy, were performed and compared with barium study and endoscopy.

MR水成像扫描(重度T2加权TSE序列)的源图像在工作站上以最大强度重建法、表面遮盖法、容积透视法和仿真内镜法作三维图像后处理,并与钡餐造影和胃镜图像相对照。

Methods Eighty-two MR VEs were performed using navigator softwareon the workstation(Advantage windows 2.0, GE Medical Systems) based on 2D or 3D source image data sets of MR hydrography of urinary tract(n=33), cholangiopancreatic duct(n=16), spinal canal (n=8) and ventricle(n=5), and MR angiography intracranial (n=10) and abdominal (n=10) on 1.5T MR scanner.

将62例MR水成像(尿路33例,胰胆管16例,椎管8例,脑室5例)和20例MR血管造影(脑、腹部各10例)二维或三维扫描数据传输至工作站,用导航软件选择适当成像方式、阈值、视角及方向和人工伪彩色重建沿管腔长轴行进的内表面图像。

Result:The MR hydrography of inner ear of the patient displayed that there was an extradural high-signal intumescence which was like sliver shape and the edge of it was smooth and neat between the sigmoid sinus of the posterior cranial fossa and the inner acoustic meatus.

应用三维高级快速自旋回波序列横断扫描大前庭水管综合征患者的整个颞骨岩部,将所有原始图像传给网上工作站,应用最大密度投影法将图像进行三维重建,获内耳立体像。

Based on the eco- environment function, confirmed the constitution of eco- environment water demand(including the inside of the watercourse.and the ecological water demand of the outside of the watercourse such as ecological water demand of economical crop, of lake or reservoir and of cities.).③Analyzing the physical geography, hydrography, economy characteristic and water resource status, getting the proper calculation method. The Tennant applied to the eco- environment water demand of inside of the watercourse, woodland minmum eco- environment water demand calculation method applied to the eco- environment water demand of woodland, water ration method applied to farmland the eco- environment water demand, water evaporation method applied to the reservoir eco- environment water demand.

本文以流域生态环境需水为主要研究对象,因此重点阐述了流域生态环境需水量的分类和计算方法;②通过分析流域生态系统构成与流域生态环境功能,并分时段和河段考虑,确定了桃花江流域生态环境需水量的组成,即包括维持现状河道生态环境功能现状的现状生态环境需水量与流域生态环境改善的生态环境需水量,前者包括河道内生态环境需水量(维持河道基本生态功能需水量、维持河道自净稀释功能需水量、补充地下水水量及美化流域景观娱乐需水)与河道外生态环境需水量(流域内植被、森林、农田的需水量和与河道相连的池塘、水库等的需水量);后者还包括为治理改善流域生态环境而拟规划林业生态建设所需水量;③对桃花江流域的自然地理、水文地质和社会经济特征以及水资源现状及其主要生态环境问题进行了综合分析,提出了适合桃花江流域的生态环境需水量计算方法,即采用Tennant法计算河道内生态环境需水量,采用林地最小生态环境需水量法计算林地生态环境需水量,采用需水定额法计算农田生态环境需水量,采用水面蒸发法计算水库、池塘生态环境需水量。

Based on the data of hydrography, measured waves, sediments, drilling Quanternary strata, microorganism, sporopllenin, landforms, climate and others in Zhoushan Islands channels, the strait channel effects are systematically studied.

本文根据舟山群岛峡道内分布于虾峙门、马岙、金塘水道和册子水道的水文泥沙实测资料,北仑港、野鸭山和虾峙门口门区的波浪观测资料,北仑电厂运煤码头前沿的第四纪地层钻孔资料、微体古生物鉴定和孢粉分析资料和虾峙门口门区5米浅钻资料,分布于金塘水道、册子水道、马岙三江口海域、虾峙门口门区和杭州湾南部的海底沉积物采样分析资料,册子水道东部野鸭山潮滩和马岙三江口潮滩的沉积物采样分析资料、潮滩地貌的踏勘资料、舟山群岛峡道地区的海图资料以及舟山群岛地区气象气候等其它资料,对舟山群岛峡道效应进行了综合性的系统研究。

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