                   <tr>
                                        <th class="text-nowrap">可嵌套</th>
                                        <td colspan="4">是</td>
                                    </tr>
                                    <tr>
                                        <th class="text-nowrap">偏移（Offsets）</th>
                                        <td colspan="4">是</td>
                                    </tr>
                                    <tr>
                        