查询词典 Delta

The present method is applied to two-dimensional potential problems and the corresponding discrete equations are derived. Because the shape functions so-obtained possess the Kronecker delta property, the essential boundary conditions can be enforced as the FEM; furthermore, the Heaviside step function is used as the test function, there is no domain integral, and only a regular boundary integral is involved.

因为滑动Kriging插值方法构造的形函数满足Kronecker函数性质，所以本文建立的改进的无网格局部Petrov-Galerkin法可以像有限元法一样直接施加边界条件；由于采用Heaviside分段函数作为局部弱形式的权函数，因此在计算刚度矩阵时只涉及边界积分，而没有区域积分。

Boundary polynomial point interpolation mesh-free method and boundary radial point interpolation mesh-free method were presented, based on polynomial basis and radial basis respectively for transient eddy current analysis, and their interpolation shape functions satisfy the Kronecker delta function and the essential boundary conditions can be directly imposed on the boundary nodes. An example on analyzing transient eddy current of a square metal column was set to prove the validity of the proposed methods, and a comparison on accuracy between BPPIM and BRPIM was analyzed as well.

运用多项式点插值法和径向基点插值法构造形函数，推导了适合于工程电磁场瞬态涡流问题的多项式基点插值边界无单元方法和径向基点播值边界无单元方法，这两种方法的空间插值形函数满足Kronecker delta条件，从而强加边界条件可以直接施加在边界点上，以金属长方柱的瞬态涡流分析作为数值算例，证实了两种方法的正确性和有效性，并对两种基类的点插值法进行了精度分析和比较。

These 2 types of depositional sand bodies are rarely seen in typical depositional modes of lacustrine delta sand bodies.

这两种类型沉积砂体在已有的典型湖成三角洲砂体模式中很少提及。

In this study, Atmospheric Research Model (MM5) and Four-dimensional data assimilation was used to simulate the land and sea breeze circulation over the Pearl River Delta Region.

利用中尺度数值模式MM5和四维同化技术相结合对珠三角地区的海陆风过程进行了模拟。

Landor's recent identity for Delta Airline's low-fare carrier Song portrays a bit of a playful nature as well.

例如Landor朗涛给Delta航空做的低票价搬运Song的品牌标识，就采用这样的手法，带了少许顽皮的自然。

Our company is a professional granite manufacturer, mainly produces various specifications and various standards and measuring plate: angle square, feet, flat feet, surveying Block, V-block, parallel rules, such as granite box measuring, components, such as: coordinate measuring machine base, the base circuit board equipment, a variety of projector base, the company's projector to enter the base in Shenzhen and the Pearl River Delta region south by customers, U.S. Products are mainly exported to Germany, Spain and China Taiwan etc. countries and regions, and Machinery Factory Qingdao outpost set up a partnership sells its products in Japan, Germany, the test of DIN, JIS, product packaging in line with international export standards, at the same time The company has advanced production equipment, one large double-housing planer Units, bridge-type cutting machine 1 Units, Units 1 rail grinder, large CNC Drilling Units 1, 5 Units Vertical Drilling Machine, 10 tons lane 2, 5 tons lane 2 Department of 3 tons lane 2, and has 2000 square meters large thermostat workshop for high-precision measuring and cutting granite, laid the foundation meter.

我们公司是一家花岗石专业生产厂家，主要生产各种规格及各种标准的平板及量具：角尺、方尺、平尺、测量座、V 型块、平行规、方箱等花岗石量具、构件，如：三坐标测量机底座，线路板设备配套底座，各种规格的投影仪基座、本公司生产的投影仪基座打入深圳及南方珠三角地区，深受客户的好评，我们的产品主要销往德国、西班牙及中国台湾等多个国家和地区，并与青岛前哨机械厂建立了合作关系，其产品销往日本，德国，检验标准DIN、JIS，产品包装符合国际出口标准，同时本公司拥有先进的生产设备，大型龙门刨床1台、桥型切机1台、导轨磨床1台，大型数控钻1台，立式钻床5台，10吨行车2部，5吨行车2部，3吨行车2部，并拥有2000平方米的大型恒温车间，为高精度的花岗石量具、量仪奠定了基础。

Moreover, SRT exposure showed decreased activation in gamma (30-45Hz) and a lateralization of evoked delta (1 to 4 Hz).

此外，塞尔维亚广播电视台曝光显示下降激活伽玛（ 30 45Hz ）和侧诱发三角洲（ 1至4赫兹）。

The Volga river delta provides an ideal entry, leading straight to Stalingrad, the underbelly of Russia.

伏尔加三角洲是一个理想的入口，从那里可以直接进入俄罗斯的软下腹斯大林格勒。

Lechwe rest as the setting sun casts a purple glow over Botswana's Okavango Delta.

Lechwe静止一样设定太阳投掷到一个紫色的光辉越过博茨瓦纳的Okavango三角洲。

Ife in Color: Purple Lechwe rest as the setting sun casts a purple glow over Botswana's Okavango Delta.

echwe静止一样设定太阳投掷到一个紫色的光辉越过博茨瓦纳的Okavango三角洲。

In other research, chondroitin is being investigated for use in several other conditions.

在其它研究，软骨素被调查用於几个其它情况。

They would make fun of him for having to work.

他们拿他的工作来开玩笑。