unrealizable

At present, the public sport teaching at most colleges is mainly measured by demise assessment, this causes unrealizable feedback function and neglects the student's personal factor and non-synchronism in their development.

当前大多数高校公体教学评价以终结性评价为主，使评价的反馈功能无法及时体现，而且忽视了学生的个体因素及发展的非同步性。

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While new business mode brings new challenge to the lottery issuer, natural disadvantage presents in the existing system established by making paper lottery as the target, it makes effective regulation to mobilephone lottery business unrealizable.

但是新的业务模式带给彩票发行方新的挑战，现有的以有纸化彩票为目标建设的系统天然存在缺陷，已经不能实现对手机彩票业务的有效监管，使得手机彩票业务在高危下畸形发展。

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The birth and rising of new disciplines can realize the applications which are previously either unrealizable or impractical.

新学科的诞生和崛起，都可能实现过去认为不可能或不现实的应用；

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This method overcomes the difficult and unrealizable experiment conditions that are used to measure the absolute attenuation coefficient and impels the technique of ultrasonic characterization to be more closed to the engineering requirements and more practical.

该方法克服了绝对衰减系数测定法对实验条件要求极为苛刻、难以实现的不足，使得超声表征技术更接近工程条件、更具实用价值。

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However, it is unrealizable to acquire the perfect CSIT in practice.

但是，在实际系统中很难得到完全的发射端信道状态信息。

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An optimal fault-tolerant control is proposed which meets the quadratic performance index, and the physically unrealizable problem of the optimal fault-tolerant control is solved. 6.

提出了一种满足二次型性能指标的动态的最优容错控制的方法，并解决了最优容错控制的物理不可实现问题。

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By using a filter the physically unrealizable problem of the feedforward control is realized.

利用滤波器解决了前馈控制的物理不可实现问题。

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