查询词典 phreatic

With the increase of lasting time of retaining water by the1st sub dam, some phenomena will occur, such as water infiltrates into the dam body gradually, the phreatic surface rises constantly, the unsaturated region reduces corresponsively, the pore water pressure increases and the shear strength decreases continuously in the site which is influenced by water infiltration.

分析表明，随着子坝挡水历时的增加，积水不断下渗，浸润线逐渐抬高，非饱和区域相应减少，坝体中受此影响的部位的孔隙水压力也随之不断增高，抗剪强度不断降低。

With the increase of lasting time of retaining water by the1 sub dam, some phenomena will occur, such as water infiltrates into the dam body gradually, the phreatic surface rises constantly, the unsaturated region reduces corresponsively, the pore water pressure increases and the shear strength decreases continuously in the site which is influenced by water infiltration.

分析表明，随着子坝挡水历时的增加，积水不断下渗，浸润线逐渐抬高，非饱和区域相应减少，坝体中受此影响的部位的孔隙水压力也随之不断增高，抗剪强度不断降低。

And detected precision still is restricted certainly, at present each countries develop maritime petrolic actively high-tech detects technology, better detect method still is phreatic water examination.

而且检测的精度仍然受到一定的限制，目前各个国家都积极开发海上石油的高科技检测技术，比较好的检测办法仍是潜水检查。

One of the key aspects of seepage monitoring is the phreatic line monitoring.

本文在介绍测压管水位统计模型相关理论和方法的基础上，首先建立了测压管水位的统计监测模型。

The ability of dynamic regulation would be stronger with the rise of the phreatic water level.

分别采用中子仪和负压计观测包气带的土壤含水量分布和土壤水势分布。

Groundwater plays a significant role in the stability of reservoir slopes. However, there are no general formulas for the calculation of phreatic line.

库岸边坡中的地下水对其稳定性有重大影响，目前还没有统一的公式用来计算岸坡中的浸润线。

The volume of phreatic water suitable for irrigation increases and the extent of desalinized field remarkably e...

本文以青铜峡灌区水土化学40多年动态监测资料为依据，探讨和评价其盐量的衰减和积聚的进程，为拟

The research supplies a new method for quantitative study of steady phreatic evaporation of sand-layer soil.

该实验为定量研究夹砂层状土壤潜水蒸发提供了新思路。

No combined exploitation of phreatic water and confined water already polluted may be permitted.

第三十七条多层地下水的含水层水质差异大的，应当分层开采；对已受污染的潜水和承压水，不得混合开采。

The variation characteristics of shallow confined groundwater are similar with phreatic water.

浅层承压水含水组的地下水质变化特征和潜水基本一致。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。