Gradient descent algorithm using momentum BP network training.

It can be solved by iteration of gradient descent.

它通过梯度下降迭代求得最小值.

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Heart attack, also called myocardial infraction, can occur as much as20 years later in women.

心脏突发事件也称心肌梗死，女性常发生年龄可能推迟20年之久。

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Malformations that occur as a baby develops in its mother's womb.

发生畸形婴儿的开发在其母亲的子宫内。

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She then talks about health issues and the physical damage that can occur as a result of dieting.

她还说到了节食会导致的健康问题和身体损伤。

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Cause to happen or to occur as a consequence.

作为结果发生或者出现。

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Consequently, no polarization will occur as our productive forces become developed over the next 20 to 30 years.

再过二十年、三十年，我国生产力发展起来了，也不会两极分化。

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Delays may occur as a result of the fog.

由于雾的原因，有可能要延迟。

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We watched explosive eruptions occur as frequently as several times per day.

我们观察到爆炸式的喷发频繁到每天有多次。

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The next one will occur as soon as the lessons of the last one are forgotten.

前一个泡沫的教训一旦被人遗忘，下一个泡沫就将诞生。

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Cramping can occur as a protective mechanism following an injury.

抽筋可以在受伤后起到保护机制的作用。

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The recursive nature of the approach allows decomposition to occur as many times as needed to identify atomic system elements.

在需要分解以确定原子级系统元素时，此方法的递归性质让分解尽可能多次的发生。

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The transition zone between Structure 4 and Structure 5 occur as faulted and oblique anticline.

4号、5号构造过渡区为断裂斜歪背斜。

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Dioxins occur as a complex mixture in the environment and in food.

二恶英在环境和食品中以一种复杂的混合物形式出现。

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This discussion must occur as you consider platforms, because some programs are platform specific.

此讨论必须在考虑平台时进行，因为有些程序是特定于平台的。

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Dual nationality can occur as the result of a variety of circumstances.

双重国籍造成的原因有多种。

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Finally, hair loss may occur as part of an underlying disease, such as lupus or diabetes.

最后，可能会出现脱发的一部分，一个潜在疾病，如狼疮性或糖尿病。

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Due to the time jumps that occur as daylight saving time comes and goes.

来计划，因为在夏令时开始和结束时会出现时间跳跃。

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It can occur as a result of poor quality fuel.

造成爆震的原因可能是燃油质量不佳。

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These changes, imperceptible to the human eye, occur as the heart pumps blood through the body.

这些人类眼睛无法知觉的变化发生在心脏将血液泵向全身的时候。

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Progress does not necessarily call for large scale construction& it can occur as interventions at a small scale.

并不一定要采取大尺度的重建，而是可以插入一些小尺度的元素，象磁铁一样去更新生活条件、激活邻里关系；

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