上交换的

Home swapping, traditionally a way to find temporary accommodation for holidays , is now being used to help initiate sales by matching the homes of people who want to trade up or down but are unable to sell in a normal chain because of stale market conditions.

传统上，房屋交换是一种为假日寻找临时居所的方式，现在它正被用来帮助那些想换好一点或差一点房子的人来配对，以促进销售。由于市场状况不景气，这些人往往很难通过正常途径卖掉房子。

Therefore, N-phosphoamino acids could be used as models in the study of reactions of the phosphoryl group in the life process.First of all, a series of model N-phosphpoamino acids were synthesized. And their ester exchange reaction on the phosphorous center was studied by ~(31)P NMR, HPLC, ESI-MS and ESI-MS/MS.

首先，本论文从氨基酸角度研究磷化学，合成了一系列模型化合物N-磷酰化氨基酸，利用~(31)P NMR技术研究了磷上酯交换反应，发现α-氨基酸对于磷原子存在着手性选择现象，并且这种手性选择的差异随α-氨基酸种类的不同也有所区别。

The forth is the absent of the pretrial exchange of the evidence system and the evidence invalid system.

四是实质意义上的庭前证据交换和证据失权制度的缺位。

It is a difficult problem for a big prime integer, if we select a primitive root according to its definition the performance of the secret communication could be affected seriously since the operation cost is very high. So this paper presents and proves an algorithm for searching a primitive root with high efficiency and gives the design of flow and corresponded JAVA program.

第一步：随机选取大素数P和在GF上的本原根g，并将P和g作为公开信息；第二步：用户A想和用户B建立保密通信时，就要交换共享的密钥KAB，A随机选取整数XA(1≤XA≤P-1)，并且计算出YA=gXAmodP经共用信道传给B，将XA保密；第三步：用户B随机选取一整数XB(1≤XB≤P-1)，计算出YB=gXBmodp，也经共用

It was found that calcium resinate, a hydrophobic and easy aggregating compound was formed by ion exchang between sodium resinate and calcium ion.

结果表明：游离的树脂酸钠盐能与Ca(上标 2+)进行离子交换，生成疏水且易聚集的树脂酸钙。

Self-expression is the first step to dialogue, to communication and the exchange of ideas.

自我表达是进入"对话"的第一步﹑由它开始达成一种思想上的沟通和交换。

If A is D-simple, i. e., A doesn't have any nontrival D-stable ideal, we have the generalized Weyl type simple algebra A .

Der为A上所有F-结合导子组成的李代数。D为Der的任一非零交换李子代数。

The objective of cell relay is to develop a single high- speed network based on a switching and multiplexing scheme that works for all data types.

信元中继的目的是在所有数据类型均适用的交换和多路复用方案基础上，开发高速传输网络。

When I fell down the stair with my classmate,my body was replaced with her.

和同学从楼梯上摔下来的时候，我和她的身体交换了。

Under technological conditions such as: room temperature, current density 200 A/m^2, anolyte acidity 0.5 mol/L chlorhydric acid, acidity of catholyte 1.5 mol/L chlorhydric acid, circulation of anolyte and catholyte 40 L/h, Ni(superscript 2+) concertration 0.85 mol/L, and the average cell voltage 1.3 V, the electricity consumption of dissolving a ton of nickel base alloy is 813 kWh, and the Ni(superscript 2+) retention rate of the ion exchange membrane is more than 99.5%.

在电流密度200 A/平方公尺、阳极酸度0.5 mol/L、阴极酸度1.5 mol/L、循环量40 L/h、Ni(上标 2+)浓度0.85 mol/L左右和室温的条件下电解，平均槽电压1.3 V，电溶1 t镍合金板耗电813 kWh，阴离子交换膜对镍的截留率大於99.5%。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。