查询词典 difficult point

Each optimizing method has its strong point. On the point of view of math, optimizing for motor design is a process for extremum point for a nonlinear, restricted recessive function. Genetic Algorithms G.A.

从数学角度上来说，电机的优化设计就是一组非线性、有约束条件的隐性函数求极值问题，目前比较成熟的优化方法主要有遗传算法、模拟退火法与Tabu法等，其中以遗传算法应用最为广泛。

It is almost impossible for a ten-year-old boy to finish such a difficult task / so difficult a task.

一个10岁的男孩完成这么艰巨的任务几乎是不可能的。

Some people even more difficult for each abalone on the stomach because of its high protein difficult to digest because.

有些人每啖鲍鱼就胃痛，这是因为它的高蛋白质颇难消化的缘故。

To be true and accurate information, saying that it is not difficult to difficult.

是真实的和准确的信息，认为这是不难困难。

I investigated how difficult it would be, and it did turn out to be difficult, albeit not impossible.

的。我研究了它的实现有何困难，发现的确很难，虽然不是不可能。

It is generally difficult to get analytical solutions of the stochastic differential equation's water quality model. What is more, as to the issue like the initial boundary result of a convection-dispersion equation, it is even more difficult to change the random factors into the uncertainty.

NSFEM法是把Neumann展开式引入以解决矩阵求逆的效率问题，如果对每一次随机抽样，只需形成刚度矩阵，进行前代、回代以及矩阵乘和矩阵加减，而无需矩阵分解，则可大大减少工作量。

Any less and it would be difficult to protect the family and any more would be difficult to feed.

任何减少，这将是难以保护家庭和更多的将是困难的饲料。

Excavations make it clear that Arbela was already occupied in the fourth millennium BCE, but it is extremely difficult to know more about the first two thousand years of its history, because the modern city lies on top of the ancient town, which makes excavation difficult..

发掘表明， Arbela已经被占领的公元前4千年，但它是极其困难更多地了解第一二千年的历史，因为现代城市位於上方的古镇，这使得开挖困难。。

And whole more attention in Chinese culture, the person ordering wants to satisfy the taste of different people, may be praised, also may be criticized, the archaism said:" it is difficult to cater for all tastes ", also know this is a difficult matter, can do it in this way, because think it is more important that the whole is unanimous.

而中国文化中更多的重视整体，点菜的人要满足不同人的口味，可能会受到赞扬，也可能会受到批评，古语有云："众口难调"，也知道这是件难事，可还要这样做，因为觉得整体的一致更重要。

It is difficult for most people to self promote and if you lack assertiveness, it is especially difficult.

对于多数人来说，自我推销都是一件困难的事情。尤其是你没什么自信的话。

For the head-teacher of the class said that I had seriously broken the school rules,which led me to a three-day suspend class.

为什么呢？因为我的班主任说我严重的违反了校规，于是让我停课三天。

Many of them believe that the conversion of thousands of working-class folk in England spared that nation from the mass carnage and the tyranny that came with the revolution in France.

他们之中有许多人相信，在英国数以千计的劳工阶级之悔改信主使英国免於遭受如法国大革命所造成的大屠杀和专制暴政。