极小

But the back propagation algorithm often gets into the minimum value and its constringent speed is slow. Aim at the gases, we design a optimum back propagation algorithm.

传统的前馈神经网络多采用误差反传学习算法对网络进行训练，但是误差反传学习算法具有容易陷入局部极小值，收敛速度慢以及容易导致震荡等缺点。

With combination of this sensitivity formula and the Courant's maximum-minimum principle one interesting theorem is proposed on the optimal support location to maximize buckling load.

结合灵敏度公式和极大极小原理提出了使屈曲载荷达到最大的优化支承位置的一个定理。

When the crowds have departed, it is then that Mykonos can best be enjoyed as the tiny cycladic fishing village it has always been.

当拥挤的人群散开，那么迈克诺斯岛这个极小的基克拉迪群岛渔村开始让人们享受乐趣。

The transparent shells of tiny Cypridina hilgendorfii, found in the coastal waters and sands of Japan, hold a creature that emits a luminous blue substance when disturbed.

透明的贝壳的极小的丽仙介发现在日本的沙滩和海岸。控制这生物能发出蓝色亮光物质当受到干扰时。

The transparent shells of tiny Cypridina hilgendorfii, found in the coastal waters and sands of Japan, hold a creature that emits a luminous blue substance when disturbed.

透明的贝壳的极小的丽仙介hilgendorfii，发现在日本沿海的水域和沙滩，握住一只生物放射出一种发蓝色光的物质受到干扰的时候。

The DASI scores showed no difference between the PCI and medical-therapy groups at one year and beyond, although there was an initial advantage for the PCI-treated patients.

PCI组和药物组两年的SF-36数值无临床差异和统计学意义。像心绞痛和呼吸困难等次要终点，PCI组有优势，但在研究结束时两组差异极小。

But experts said that this is a deformational sheep, and the possibility to breed the 4-horned sheep is very small.

但专家断定这是一只畸形羊，繁殖出四角羊后代的可能性极小。

When laser light strikes the surface of a tiny reflective display chip, made from liquid-crystal on silicon, the crystals both diffract the beams and alter the phase of the light waves, creating images that are in focus at all distances from the projector.

当激光打击一个极小的、由液晶硅制成的反射显示片，上面的晶体即会使光束产生衍射，也会改变光波的相位，产生来的是无论距离投影仪远近都处于焦点下的画面。

Scientists have found microscopic diamonds across North America in a black layer of carbon-rich material corresponding to the beginning of the Younger Dryas, a 1,300-year cold spell during which North American mammoths, saber-toothed cats, camels and giant sloths became extinct.

科学家们发现极小的钻石全北美黑色一层富含碳的材料相应的开头新仙女木，一个1300年的春寒中北美猛犸象，剑齿猫科动物，骆驼和巨大sloths灭绝。

The reflexed upper palea tip, although a very tiny character, is nevertheless important for distinguishing Echinochloa from neighboring genera, especially Brachiaria .

反折上面内稃端部，虽然一极小特征，适合分辨Echinochloa和相邻的属，特别是Brachiaria 虽然如此重要。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。