请生成一个像流程图一样的神经网络结构图，该神经网络的结构如下：使用了三个卷积层，分别是self.conv1、self.conv2和self.conv3，每个卷积层后接一个BatchNorm2d层，分别是self.bn1、self.bn2和self.bn3——这些层的作用是提取图像特征。在卷积层之后，研究者使用了一个MaxPool2d层，它的作用是对特征图进行下采样，从而减少参数数量和计算量。最后，研究者使用了两个全连接层，分别是self.fc1和self.fc2，它们将特征图转换为最终的输出结果。在全连接层之间，研究者使用了ReLU函数激活特征。

好的，这里是您所描述的神经网络结构的流程图：

+------------------------------------------------------------------------------------+
|                                      Input                                         |
+------------------------------------------------------------------------------------+
                                      |
                                      |
                                      v
+------------------------------------------------------------------------------------+
|                                     conv1                                          |
|                                (3x3 Convolution)                                    |
+------------------------------------------------------------------------------------+
                                      |
                                      |
                                      v
+------------------------------------------------------------------------------------+
|                                     bn1                                            |
|                            (Batch Normalization)                                    |
+------------------------------------------------------------------------------------+
                                      |
                                      |
                                      v
+------------------------------------------------------------------------------------+
|                                     ReLU                                           |
|                               (Activation Function)                                 |
+------------------------------------------------------------------------------------+
                                      |
                                      |
                                      v
+------------------------------------------------------------------------------------+
|                                    conv2                                           |
|                                (3x3 Convolution)                                    |
+------------------------------------------------------------------------------------+
                                      |
                                      |
                                      v
+------------------------------------------------------------------------------------+
|                                     bn2                                            |
|                            (Batch Normalization)                                    |
+------------------------------------------------------------------------------------+
                                      |
                                      |
                                      v
+------------------------------------------------------------------------------------+
|                                     ReLU                                           |
|                               (Activation Function)                                 |
+------------------------------------------------------------------------------------+
                                      |
                                      |
                                      v
+------------------------------------------------------------------------------------+
|                                    conv3                                           |
|                                (3x3 Convolution)                                    |
+------------------------------------------------------------------------------------+
                                      |
                                      |
                                      v
+------------------------------------------------------------------------------------+
|                                     bn3                                            |
|                            (Batch Normalization)                                    |
+------------------------------------------------------------------------------------+
                                      |
                                      |
                                      v
+------------------------------------------------------------------------------------+
|                                     ReLU                                           |
|                               (Activation Function)                                 |
+------------------------------------------------------------------------------------+
                                      |
                                      |
                                      v
+------------------------------------------------------------------------------------+
|                                    MaxPool2d                                       |
|                      (2x2 Max Pooling with Stride 2)                                |
+------------------------------------------------------------------------------------+
                                      |
                                      |
                                      v
+------------------------------------------------------------------------------------+
|                                     fc1                                            |
|                            (Fully Connected Layer)                                  |
+------------------------------------------------------------------------------------+
                                      |
                                      |
                                      v
+------------------------------------------------------------------------------------+
|                                     ReLU                                           |
|                               (Activation Function)                                 |
+------------------------------------------------------------------------------------+
                                      |
                                      |
                                      v
+------------------------------------------------------------------------------------+
|                                     fc2                                            |
|                            (Fully Connected Layer)                                  |
+------------------------------------------------------------------------------------+
                                      |
                                      |
                                      v
+------------------------------------------------------------------------------------+
|                                    Output                                          |
+------------------------------------------------------------------------------------+