查询词典 difficult problem

The problem of negative skin friction on piles is one of the heated and difficult problems in pile foundation.

1前言桩土之间相对位移的方向不同，在桩上产生的摩擦力也不同。

How to select appropriate components to implement the design of the SOC is a difficult problem to solve.

如何选择合适的元件来实现系统芯片设计是目前面临的重大难题之一。

The control of soft rock roadway stability, especially the control of soft rock coal roadway under the high stress is always one of the difficult problem.

软岩巷道支护，尤其是软岩回采巷道支护，一直是矿业工程难点问题之一。

It's difficult to find a solution to this problem.

很难找到一个解决这个问题的办法。

In order to solve the difficult problem of the very small number of training samples in off-line signature verification, a new scheme based on the movement relativity of images in different coordinates of Euclidian space is proposed.

为了解决可用签名样本极少条件下的脱机签名鉴定问题，本文还提出了一种新的基于平面图像移动相对性原理建模的方案。

The adjustment of spectrometer is a difficult problem to the students in their experiments.

分光仪的调节是学生实验中的一个难点，该文在分析出现难点原因的基础上介绍了一种快速调节分光仪的方法——扫描法

He desires to answer speedily but we sometimes believe our problem is too difficult for him to solve.

他希望回答迅速，但我们相信我们的问题有时是太困难，他来解决。

Each of these opinions has its adherents, but the former seems difficult to uphold despite, and in part perhaps because of, the light which recent experiments in suggestion, hypnotism, and spiritism have thrown on the problem.

每个这些意见有其信徒，但前者似乎很难坚持，虽然，并在部分也许是因为，根据最近的实验中建议，催眠术，并spiritism已抛出这个问题。

Think that several thousands Chinese medicine company or enterprise faces camp when one pin pattern rotates the type difficult problem, Xi'an Yang Sen welcomes the victory selling well in splendidness breaking 3 billion yuan of RMB in course of.

当数千家中国医药公司或企业面对营一销模式转型的难题时，西安杨森正在迎接行销突破30亿元人民币的辉煌胜利。

Summation of infinite series is part of the process of learning more difficult to grasp the progression part, this article summarizes the common summation of several infinite series method, as has the use of progression and the definition of sum, the use of itemized points or one differential sum, the use of split-phase elimination method of summation methods, and problem-solving steps in detail.

无穷级数的求和部分是学生学习级数过程中较难掌握的部分，本文归纳了常见的几种无穷级数的求和方法，像有利用级数和的定义求和、利用逐项积分或逐项微分法求和、利用裂项相消法求和等方法，并提出了详细的解题步骤。

Pachomius manual labour was organized as an essential part of the monastic life; and since it is a principle of the monks as distinguished from the mendicants, that the body shall be self-supporting, external work of one sort or another has been an inevitable part of the life ever since.

根据圣pachomius体力劳动组织作为一个重要组成部分寺院生活；以来，这是一个原则的和尚，作为有别于乞丐，该机构应自支撑，对外工作的这种或那种已一个必然的一部分，生活至今。

In order to study the effects of parametrical rolling on the ship movement and tilts, in allusion to ship's navigating in regular following waves, the equation of ship rolling motion is transformed into normal Mathieu equation by proper variable replacement when strong parametrical excitation in restoring moment varied according to sine or cosine wave.

为研究参数横摇对船舶运动和倾覆的影响，通过对船在规则波上随浪航行时，恢复力矩中出现的1个以正余弦规律变化的强参数激励项进行适当的变量置换，将船舶的横摇运动方程转换成标准形式的Mathieu方程。