查询词典 piezometric

The hydraulics are many more abstract concepts, such as water down on the physical process Flash animation can be used to form the wall with time changes, Piezometric head with time changes, pressurized pipe flow direction using flash animation shows, to reflect the vertical bisector and angle bisector of the rich multimedia features of the form can abstract mathematical concept into accommodation acceptable to the visual form.

在水力学中有许多较为抽象的概念，如水击的物理过程，可以用FLASH动画的形式将管壁随时间的变化过程，测压管水头随时间的变化过程，有压管中的水流方向用flash动画表现出来，以体现垂直平分线和角平分线的特点多媒体丰富的表现形式能使抽象的数学概念变为学生容易接受的直观形式。

The hydraulics are many more abstract concepts, such as water down on the physical process Flash animation can be used to form the wall with time changes, Piezometric head with the time change, pressurized pipe flow direction using flash animation shows, to demonstrate vertical bisector and angle bisector of the rich multimedia features of the forms make an abstract mathematical concept into accommodation acceptable to the visual form.

在水力学中有许多较为抽象的概念，如水击的物理过程，可以用FLASH动画的形式将管壁随时间的变化过程，测压管水头随时间的变化过程，有压管中的水流方向用flash动画表现出来，以体现垂直平分线和角平分线的特点多媒体丰富的表现形式能使抽象的数学概念变为学生容易接受的直观形式。

According to the statistic model of piezometric level, model of piezometric level monitoring on the basis of support vector machines is founded. Comparing with traditional statistic model, the new model is more accurate and has better extension forecasting capability.

此后，针对统计模型的不足之处，引入了支持向量机方法的相关理论，建立了基于支持向量机方法的测压管水位监测预报模型，与统计模型相比，结果拟合精度更高，预测趋势更加符合实际情况。

The strong corrosion of the acetic acid makes it difficult to select and design the measurement apparatus. In this paper, a new piezometric densimeter was designed and manufactured by ourselves.

另外，在PTA相关体系中，醋酸作为溶剂是生产过程中一个重要的组分，醋酸的强腐蚀性是实验装置的设计和选型的一大难题。

And the equations are solved coupling iteratively whith PCG method for Laplace equation and Gauss—Seidel method for convective equation.So the distribution of piezometric tube waterhead and saturation can be obtained.And the seepace free surface will be captured automatically according to the distribution of saturation with the concept of VOF.

分别对饱和区的拉普拉斯方程采用预处理共轭梯度法、非饱和区的对流方程采用Gauss—Seidel方法进行耦合迭代求解，得到渗流场的测压管水头分布和饱和度分布，并引入VOF的概念，由饱和度的分布自动扑捉渗流自由面。

During the process of filling, the water heads of all piezometers are higher than the surface of the soil. Moreover, the deeper the piezometer is ebedded, the higher the piezometric head will be.

饱和粉土和黏性土在填筑过程中，底板所受浮力极大，并可能超过被其排开的饱和土的重量，且测压管水头在填筑过程中均超过填土面高度，埋置越深的测压管水头越高。

Then, concerning the difficulty of ascertaining hysteresis time of piezometric tube, Genetic Algorithm-Radial Basis Function Neural Network model is developed according as the method that reservior level is rectilinear correlation with piezometric tube level, which not only could be calculated by computer but also is showed logical and feasible.

针对以往监测模型预测精度难以保证的的问题，本文在分析比较了几种土石坝安全监测预报模型的基础上，提出了一种新的安全监测预报模型——遗传回归模型，该模型通过遗传染色体对建模因子进行优选，并在适应度函数中综合考虑模型拟合精度与预测精度平衡。

Examination of the equilibrium status of a point in the salt water zone and the description of piezometric heads at two points in both the salt water and fresh water zones reveals that the location of the fresh water-salt water interface in a coastal homogeneous, isotropic unconfined aquifer can be estimated based on piezometric heads at two points in the same vertical line tapping respectively the salt water zone and the fresh water zone (from the water table to the interface) when the groundwater flow system is in a steady state and satisfies the Dupuit assumption.

通过考察咸淡水界面之下咸水带任意点的压力平衡关系和咸水带及淡水带任意点的水头描述得知，当地下水流处于稳定状态且满足Dupuit假设时，可以根据同一垂直线上界面之下咸水带任意点的咸水测压水头和界面之上淡水带任意点的淡水测压水头确定滨海均质各向同性潜水含水层咸淡水界面的位置。

The saturation equals 1 in saturated region.The piezometric tube waterhead equals position head by neglecting the effect of capillarity in unsaturated region.So the nonlinear parabolic equation of seepage flow will degenerate to Laplace equation about piezometric tube waterhead in saturated region and convective equation about saturation in unsaturated region respectively.

将渗流域分为饱和区与非饱和区，为避免研究复杂的多相流问题，可以认为非饱和区是与大气相通的，则测压管水头中的压力与大气压相等，使测压管水头等于位置水头，从而渗流控制方程在两个区域中分别退化为关于测压管水头的拉普拉斯方程和关于饱和度的对流方程。

The research result indicates that abnormal water levels are due to the following conditions: the P7 old piezometric hole was silted up, the impervious curtain in front of P8 and P9 old piezometric holes was weakened or there are some seepage channels between upstream face of sluice and these holes, and construction quality of P1, P7, P8, P9 new piezometric holes was not good enough.

研究表明，P7老测压孔水位异常在于该测压孔被淤堵，P8，P9老测压孔水位异常在于测压孔所在部位防渗帷幕效果被削弱，或坝体上游面与P8，P9老测压孔之间存在渗流通道；P1，P7，P8，P9新测压孔水位异常在于测压孔施工质量欠佳。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐