理论上

This thesis has mainly contributed two results in theory: one is that the covariance matrix is not positive definitive if the number of sampling is least than the number of variables, the other is that the covariance matrix of discrete sample is positive definitive if and only if the sum of every random column vector of data matrix is non I-linear combination.

本论文在理论上，主要得出两个新的结果：ⅰ抽样调查中，若样本的个数少于变量的个数则样本协方差矩阵恒为非正定；ⅱ离散型样本协方差矩阵正定的充要条件是样本资料阵的各随机列向量是非I-线性组合。

In theory, the number of combinations of efficacies is infinite.

在理论上，功效合并的数量是无限的。

So, necessary correctly it is carried on combing in theory and discussion, in order to grasp and use better.

因此，有必要对其进行理论上的梳理和探讨，以便更好地掌握和运用。

If the Quaestiones Perpetuae had had a longer history, they would doubtless have come to be regarded as a distinct institution, and their relation to the Comitia would have seemed no closer than the connection of our own Courts of Law with the Sovereign, who is theoretically the fountain of justice.

如果"永久审问处"有一个较长的历史，它们将无疑的会被认为是一个各别的制度，它们和"民会"的关系将不会比我们自己的法院和君主之间的关系更为密切，君主在理论上是公道的泉源。

Theoretically this may be true; but in real life incommensurables are commensurable.

理论上这可能是对的；但实际生活中不配比较是可以衡量的。

Had they paid out less, capitalappreciation would, in theory, have been commensurately higher.

假如他们支付的过少，理论上，资本增值更高。

In theory.,insurance agency is a special ease of commercial agency that is a special case of civil agency.

从理论上说，商事代理是民事代理的特殊形式，保险代理是商事代理的特殊形式。

The dissertation carries the systematic experimental studying on the comminution of mineral particle beds by impact, and discusses...

本文对矿岩料层在冲击加载下的粉碎规律进行了较为系统的实验研究，并进行了理论上的探讨。

In my research, I will argue that utilitarianism, contrary to its critics'conception, has theoretical resources to take full account of commonsensical moral rules.

在笔者的研究中，笔者将论证，这种对於效益主义的批判乃是一种误解，效益主义事实上有理论上的资源可以解释日常道德规则。

Therefore, the establishment of the principle of commonweal will be of great significance in our country.

因此 ，在理论上我们有必要对检察公益原则作进一步的阐述，以推动公益原则在检察实践中的发展。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。