查询词典 difficult problem

Darin body of a child is not good, the Rheumatology let him congenital heart big problem occurs, the doctor even warned his life it would be difficult for more than 20 years.

小时候的Darin身体并不好，先天性的风湿病让他的心脏出了大问题，医师更警告他的生命恐怕很难超过廿岁。

In mechanical industry, high precise coaxiality test of large mechanical components was considered as a complicated problem, because it was very difficult to find a datum line with high precise in long distance.

大型机械零部件同轴度高精度测量是机械行业的共性技术难题，其技术关键和难点在于建立长跨距的高精度测量基准线。

I think it difficult to deal with such a problem.

我认为处理这样的问题是困难的。

This is a difficult problem to deal with.

这是个棘手的问题。

In the aspect of Opto—electrical signal processing, because the heterodyne interference signal is a high frequency fringe signal, how to measure the phases change of this signal——including the integer part of phases change over 2π and decimal part of phases change within 2π, is a difficult problem in electrical circuit technique.

一方面，该电路能同时测量出相位改变量的2π整数部分和2π以内的小数部分，从而实现了大量程和高精度的统一；另一方面，由于该电路是模拟电路，其最高工作频率可以远大于由数字集成电路组成的条纹计数电路，故在实际应用中，其工作频率的设计范围能够适应较宽的外差干涉差频范围，这就为高速激光外差干涉测量打下了基础。

She was faced with a difficult problem/decision.

她面临一个困难的问题/选择。

Risk decision is a difficult problem which exists in economic work.

风险型决策是经济工作中的一个难题。

The basic and difficult problem is the definement or measurement of the similitude between two cases.

CBR系统中最基本的问题和很难的问题是关于两个实例的相似性的定义，即相似性的度量。

One is that how to demount the wheel and the output shaft that were too difficult to demount in the L60 vertical axial-flow fan s,the other problem is to test static balance about the wheel.

就L60立式轴流风机轮毂与输出轴难于拆卸的问题和叶轮静平衡测试问题进行探讨，并提供用自制的简易龙门架和静平衡装置的方法进行检修的经验。

This has been in a departmental budget difficult problem.

这一直是部门预算中的一个难题。

Chimborazo and Cotopaxi, took me by the hand.

越过琴博腊索山和科托帕克西山。

This car is in a good condition.

这辆车的状况很好。