查询词典 hilbert problems

Timing of petroleum emplacement is one of the important scientific problems in petroleum geology.

油气成藏年龄是石油地质学和同位素年代学共同面临的科学难题之一。

The development of processing trade has made a great contribution to using foreign capital,expanding employment and increasing foreign exchange,but the problems in the development of the processing trade have become more serious.

加工贸易的发展对我国利用外资、扩大就业和出口创汇等做出了较大贡献，但加工贸易发展中暴露出的问题也日益严重。

As farfetched as the Celestial Emporium system is, any classification process has its logical problems.

如天朝分类法那般牵强的任何分类都有其逻辑的问题。

In this way, we do not empower these problems to control us.

这样的话，我们就不会让这样的问题来控制我们。

They could have problems emptying the bladder or the sensation of something dangling between their legs.

他们可以有问题，排空膀胱或感觉的东西，悬挂之间的他们的腿。

All these problems will be studied and solved in this paper with the use of EMT and the association with securities markets factual situation.

而这些正是本文利用证券市场效率理论，结合我国证券市场实际情况进行研究与解决的问题。

At present, China plus the ratio of liquid emulsion of research has made some progress, but there are many problems.

目前我国在乳化液配比加液方面的研究已取得了一定进展，但也存在着不少问题。

This article illustrates several theoretical problems in order to bring benefit to the enactment and perfection of the act.

通过就考试法立法当中的几个基本理论问题的阐述，以期能对考试法的出台和进一步的完善发展有所裨益。

To solve these problems, this article studies the performance of coal-tar enamel.

本文主要完成了以下几方面的研究工作： 1。

Key management is the core problem of network system security, which deals with the correlative problems from key being generated to ultimately destroyed; it includes system initialization, key generation, key encasement, key distribution, key storage, key renovation, key destruction, etc. Thereinto key distribution and key storage are the two most intractable taches of key management.

密钥管理问题是网络系统安全中首要的核心问题，它是处理密钥自产生到最终销毁的整个过程中的有关问题，包括系统的初始化，密钥的产生、装入、分配、存储、更新、吊销和销毁等内容，而密钥的分配和存储是密钥管理中最为棘手的两个环节。

However,this formula does not applicable to mortar and recoilless gun.

但此式不适用于迫击炮和无后坐炮。

Different people can have different kinds of learning disabilities.

不同的人可能有不同类型的学习障碍。