docs(API): 翻译完了几个表单控件类

aio/content/translations/cn/api-plan.md

@@ -18,8 +18,8 @@
 [x] |core/Input | 3,354 | 1.04
 [x] |core/EventEmitter | 3,202 | 0.99
 [x] |core/Injectable | 3,177 | 0.99
-[ ] |forms/FormGroup | 3,096 | 0.96
-[ ] |forms/FormControl | 3,034 | 0.94
+[x] |forms/FormGroup | 3,096 | 0.96
+[x] |forms/FormControl | 3,034 | 0.94
 [ ] |router/ActivatedRoute | 2,993 | 0.93
 [ ] |forms/AbstractControl | 2,930 | 0.91
 [ ] |router/RouterLink | 2,929 | 0.91
@@ -63,7 +63,7 @@
 [ ] |common/SlicePipe | 799 | 0.25
 [ ] |router/Event | 796 | 0.25
 [ ] |common/JsonPipe | 793 | 0.25
-[ ] |forms/FormArray | 792 | 0.25
+[x] |forms/FormArray | 792 | 0.25
 [ ] |common/CommonModule | 787 | 0.24
 [ ] |router/NavigationExtras | 776 | 0.24
 [x] |core/HostBinding | 732 | 0.23

aio/tools/transforms/templates/api/lib/paramList.html

@@ -25,13 +25,13 @@
       {% elseif not showType and parameter.type %}<p>Type: <code>{$ parameter.type $}</code>.</p>
       {% endif %}
 
-      {% if parameter.isOptional or parameter.defaultValue !== undefined %}Optional. Default is `{$ parameter.defaultValue === undefined and 'undefined' or parameter.defaultValue $}`.{% endif %}
+      {% if parameter.isOptional or parameter.defaultValue !== undefined %}可选. 默认值是 `{$ parameter.defaultValue === undefined and 'undefined' or parameter.defaultValue $}`.{% endif %}
       {% endmarked %}
       </td>
     </tr>{% endfor %}
   </tbody>
 </table>
 {%- else -%}
-<p>There are no parameters.</p>
+<p>没有参数。</p>
 {%- endif -%}
-{%- endmacro -%}
+{%- endmacro -%}

packages/forms/src/form_providers.ts

@@ -17,6 +17,8 @@ import {FormBuilder} from './form_builder';
 /**
  * The ng module for forms.
  *
+ * 模板驱动表单的 NgModule。
+ *
  */
 @NgModule({
   declarations: TEMPLATE_DRIVEN_DIRECTIVES,
@@ -29,6 +31,8 @@ export class FormsModule {
 /**
  * The ng module for reactive forms.
  *
+ * 响应式表单的 NgModule。
+ *
  */
 @NgModule({
   declarations: [REACTIVE_DRIVEN_DIRECTIVES],