title: How to import module to child module?
body: <p>I'm using ngx-translate in my Angular application. I'm import and done everything in app.module.ts:</p>
  
  <pre><code>import {HttpClientModule, HttpClient} from '@angular/common/http';
  import {TranslateModule, TranslateLoader} from '@ngx-translate/core';
  import {TranslateHttpLoader} from '@ngx-translate/http-loader';
  
  export function HttpLoaderFactory(http: HttpClient) {
    return new TranslateHttpLoader(http, '/assets/i18n/', '.json');
   }
  
  @NgModule({
  imports: [
      BrowserModule,
      HttpClientModule,
      TranslateModule.forRoot({
          loader: {
              provide: TranslateLoader,
              useFactory: HttpLoaderFactory,
              deps: [HttpClient]
          }
      })
  ],
  bootstrap: [AppComponent]
  
  @NgModule({
  imports: [
      BrowserModule,
      HttpClientModule,
      TranslateModule.forRoot({
          loader: {
              provide: TranslateLoader,
              useFactory: HttpLoaderFactory,
              deps: [HttpClient]
          }
      })
  ],
  bootstrap: [AppComponent]
  </code></pre>
  
  <p>I'm import and export modules like in example on github ngx-translate page. Translator works fine.</p>
  
  <p>But I have subfolder which has his own module.ts file, pages.module.ts. When I want to using ngx-translate on html file in pages folder, i have information, that translate pipe is not recognize in this app. I think I need to import elements from app.module.ts to pages.module.ts. I tried, but i don't know how to do it.</p>