交换

With abroad congener technology photograph is compared, the compound function colophony of new research and development is measured to the adsorption of organic matter in liquid waste of printing and dyeing raise 1 times above, and fight contaminative ability to increase greatly.

与国外同类技术相比，新研发的复合功能树脂一般也称离子交换树脂(用化学法将高分子共聚物制成的有机单体颗粒的离子交换剂对印染废水中有机物的吸附(物质表面吸住周围介质中的分子或离子现象)量提高1倍以上，且抗污染能力大大增强。

This kind of exchange medium's intrinsic value is equal to the commodity value which must exchange....

这种交换媒介本身的内在价值相当于要交换的商品的价值。。。。

Firstly its a medium of exchange, so its some commodity which facilitates the exchange of goods and services.

首先货币是一种交换媒介，是帮助其他货物与服务进行交换的手段。

Firstly it's a medium of exchange, so it's some commodity which facilitates the exchange of goods services.

首先货币是一种交换媒介，是帮助其他货物与服务进行交换的手段。

Firstly it's a medium of exchange, so it's some commodity which facilitates the exchange of goods and services.

首先货币是一种交换媒介，是帮助其他货物与服务进行交换的手段。

Add a few head of a station more group, be in next group in call commutative link, undertake leaving exchange with a few way station, let stationmaster advise more next, come down opinion record, improve slowly.

多加几个站长群，然后在群里喊交换链接，和一些小站进行下交换，然后多让站长提意见，把意见记录下来，慢慢改进。

According to analyzing on the consistent degree of addition modulo 2∧n with XOR addition for commutative law, the computation formulas of the probability distribution of the noise function and the square sum of the probability values were presented, which is applied on the distinguishing attack on Py. The data complexity of our attack is about 2019∧（-1）times of the data complexity of the distinguishing attack on Py proposed by Sekar et al..

通过对模2∧n加与模2加相对于交换律的相容程度的分析，给出了模2n加与模2加相对于交换律所产生的噪声函数的概率分布及其取值平方和的计算公式，并利用此结果提出了一种对Estream候选算法Py的新的区分攻击方法，该方法所需的数据复杂性约为Sekar等提出的区分攻击所需数据复杂性的2019∧（-1）。

As an application, we also describe the Jordan automorphisms of the algebra of upper triangular matrices over commutative rings, and give a sufficient and necessary condition for a commutative ring being connected.

作为应用，我们还刻划了交换环上的上三角矩阵代数的Jordan自同构，并给出了一个交换环是连通环的充要条件。

Other semirings arise naturally in such diverse areas of mathematics as combinatorics, functional analysis, topology, graph theory, Euclidean geometry, probability theory, commutative and noncommutative ring theory, optimization theory, discrete event dynamical systems, automata theory, formal language theory and the mathematical modeling of quantum physics and parallel computation systems.

在许多不同的数学领域存在着其它形式的半环，比如组合学，泛函分析，拓扑学，图论，欧式几何，概率论，交换和非交换环，优化论，离散动力系统，自动化理论，形式语言理论，量子物理的数据模型和并行计算系统。

Polynomial function ; Finite commutative ring ; Finite commutative local ring; Teichmller representatives; Witt polynomial

基础科学，数学，代数、数论、组合理论多项式函数；有限交换环；有限交换局部环； Teichmller提升； Witt多项式

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。