难以控制

Adverse selection and moral hazard reduce the insurability of risk, so the insurance mechanism losts its effect of risk control.

逆向选择和道德风险降低了风险的可保性，使保险机制难以发挥其风险分散和风险控制作用，使保险市场失去其有效性。

So it is difficult to control the microscopic and macroscopic properties of the fibers independently.

因此，难以分别控制纤维的介孔结构和形貌。

The wall-climbing micro-robot that is discussed in this thesis is a special type of robot, which is driven by means of permanent magnetic field and mutual effect of electromagnetic field, has the characteristics of small volume and flexible control, can convenient enter narrow space, pipeline and big magnetizer where it is difficult for people to reach.

本文研制的微小步行爬壁机器人是一种特种机器人，它采用永磁场和电磁场相互作用的驱动方式，具有体积小，驱动控制灵活的特点，便于进入狭小空间、管道以及人难以到达的导磁面，完成各种检测工作。

Based on the model, the measurability analysis of fairway design, the precision control of model and the simulation valuation are discussed.

高阶线性方程组的精度分析，难以给出解析表达，为此提出了系数矩阵与常数项向量的行／列精度控制的方法。

But it is difficult to get satisfied control characteristics by using normal linear proporition integral controller due to the high nonlinearity between speed and current or torque.

但它的转矩和转速之间具有强烈的非线性关系，采用常规线性PI控制器难以得到令人满意的控制特性。

In order to solve the problem that the Multi-objective Evolutionary Algorithm used in reactive power optimization currently has the shortcomings of time consuming computation, poor orientability and applicability,a ε-omination based MOEA was applied in reactive power optimization.According to different significance among objective components, an adaptive ε-omination was created and relevant post-evaluation fuzzy logic controller was established to select solution.

针对多目标无功优化方法存在寻优时间过长，优化结果针对性不强以及难以实现自动实时控制的问题，将一种基于ε-支配域的多目标进化算法应用到多目标无功优化的求解中，根据多目标模糊评价函数各目标分量的不同重要程度，构建出自适应ε-支配域，生成相应的后评价模糊控制器以实现优化结果的智能选择。

It is difficult for classical control way to deal with the conflict between the overshot and rapidity and to get satisfied dynamic performance.

传统经典控制方式存在超调与快速性之间难以调和的矛盾，很难得到理想的动态性能。

Meanwhile, witness the proliferation of perjury were also difficult to control.

同时，证人证言中伪证泛滥的问题也难以有效控制。

What we have learned is that it is difficult to control costs piecemeal and just as difficult to expand access using an incremental approach.

我们所了解的是，很难控制成本和片面的，正如难以拓展采用渐进的办法。

13 Prion diseases can be controlled, if not eradicated.

如果说普朊病难以彻底消除的话，那也是可以控制的。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。