四元的

The structures of 6 main products of ozonization of nopol were identified by GC-MS, and they are all four-ring compounds , the result suggests that the double bond, tertiary hydrogen can be oxidized, and there was other further oxidation.

通过GC-MS分析确定了6个诺卜醇臭氧化主要产物的结构，它们均为四元环类化合物，这表明诺卜醇臭氧化时碳碳双键、叔氢都会被氧化，还伴有其它更深层次的反应。

The results showed:1The 6 main products are all fourmemberring compounds produced through the cleavage of double bond of nopol;2Accompany with oxidations of the double bond and tertiary hydrogen in the ozonization,there are other reactions at more indepth levels.

分析结果表明：这6个主要产物都是诺卜醇分子中双键断裂后所形成的四元环类化合物，诺卜醇臭氧化时除了碳碳双键、叔氢被氧化外，还伴有其它更深层次的反应。

Those new methods are based on Jacobsons theory and its characteristic structure which make the problem equivalent to a 2 x 2 matrix polynomial equation with diagonalizable solutions.

1新方法及其比较主要介绍了求解四元数多项式方程的两种传统方法和两种新的方法，并在分析过程中进行了对比。

The principle of calculation of the quaternary phase stability diagrams is based on that of the ternary one.

四元热腐蚀相图的计算步骤与以上三元相图的方法有相似之处。

It is studied factorizing a matrix over quaternion field to the product of two self-conjugate matrices. And some useful results are obtained.

摘要研究了四元数矩阵分解为两个自共轭矩阵乘积，其中有一个是非奇异阵的条件，得到了一些有用的结果。

This article discusses fix quantity connection between quaternion non-linearity continuous function △ERR_ and △ERR_ in the reference literature~([1]),and its decisive effect on distributing evolvement disperse drop field in the error ratio function ERR_(100nm%)λ_(centreT,n,thus paves the way for the function degree of redundancy of Pipelined-Flash A/D.

本文讨论参考文献[1]中两类四元非线性连续函数△ERRdn与△ERRdj之间的定量关系，对误差比率函数ERR100nm%离散点域分布演变所起的决定性作用。

In this aspect, the quaternion theories and methods perhaps are appropriate.

在这方面，四元数的理论和方法或许是合适的。

To answer that, you first need to calculate the norm of your quaternion.

答案在这，你首先需要计算你的四元数的平均值。

At present ten years, quaternion is applied more and more in computer science and engineering and gets more and more attention.

特别是近10年以来，四元数在计算机科学，工程技术中的应用越来越多，更加受到人们的重视。

The norm of a quaternion is similar to that of a vector.

四元数的平均值与矢量的有点相似。

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。