用以

We have shown that it is possible to create a radioactivity characterized by the emission of positive or negative electrons in boron and magnesium, by bombardment with alpha rays.

我们已经展示了人工放射现象的可能性，这种放射现象的特征是用以射线轰击用咄硼和镁中的正电子或负电子。

The new formula of the interspecific association index is defined, in order to avoid the change of the interspecific association index with the alterability of plot area.

本次研究定义的联结度指数定义式：Y_2=NY_(02~(1/2)，将用以消除经典联结度指数中，样地面积改变而导致联结度数值发生变化的情况。

Incorrect: The black and blue mark suggested that he had been involved in an altercation.

复合形容词由两个或两个以上的形容词组成用以修饰一个名词。

Mannitol challenge appears to be a suitable alternative for an exercise provocation test to assess EIB in asthmatic children.

在评价哮喘儿童的EIB时，甘露醇激发试验是一个适合的替代试验，用以替代运动激发试验。

David Llewelyn: This is a very important decision, because if it gone the opposite way ,it would meant that it would be very difficult for well-known designers Gorge Ammine 、 Channel and all these other very famous brands to continue going after the designer died or left the company.

如果不是这么判，而是支持伊丽莎白的说法的话，那那些著名的时装公司像香奈尔啊等等等等，等他们的主要设计师去世之后这个公司继续用以这个设计师作为商标名称的话，那会统统被认为是有欺骗性的。

Multistep deposition process has been adopted in the preparation of superfine inorganic composite antibacterial powder, Ag~+ as crystal nucleus, packed outside by the hydroxid and phosphate precipitate of Ti and Zr elements etc., The optimal process conditions have been found from one-factor influence tests and multi-factor orthogonal test,and the optimal process conditions were: Ag iron was imported by silver ammine, and then 100ml Titanyl sulphate solution mixing with zirconium sulfate keep hot at 90 ℃ for 30 mins, and the Zr/Ti ratio is 0.15,and Na_2HPO_4 was added in the end.

超细无机复合抗菌粉体的制备采用以Ag~+沉淀物作为晶核，外包裹Ti、Zr等金属的氢氧化物沉淀和磷酸盐沉淀物的多步沉淀工艺，并利用单因素和正交试验法对制备工艺进行了优化，其最佳工艺条件是：Ag~+以银氨络合物引入，沉淀钛锆的反应时间为0.5h，反应温度为90℃，水解反应时体系总液量为100ml、Zr/Ti为0.15，沉淀物经水洗、干燥，于700℃煅烧4.0h；即得最终产品。

This phenomenon was discussed and the mechanism was further comfirmed by the addition of acid for promoting of photoinitiated efficiency by the quaternary ammoniation of one of amines in piperazine.

对上述现象进行了讨论，并通过加入酸类化合物使其中一个胺发生季胺盐化，用以改进光引发效率来进一步证实文中所讨论的机制。

The units in which we show voltage and current are volt and ampere respectively.

我们用以表示电压和电流的单位分别为伏特和安培。

In the second part, amphoteric polyacrylamide was prepared by modification of NPAM.

本文第二部分研究了非离子性聚丙烯酰胺的改性，用以制备两性聚丙烯酰胺。

Window of data, on which the analytic function will operate, within a

窗口生成语句用以定义滑动或固定数据窗口，分析函数在分组内进行分析。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。