angular-cn/public/docs/_examples/dependency-injection/ts/app/main.ts

//#docregion
import { bootstrap }          from '@angular/platform-browser-dynamic';
import { AppComponent }       from './app.component';
import { ProvidersComponent } from './providers.component';

//#docregion bootstrap
bootstrap(AppComponent);
//#enddocregion bootstrap
bootstrap(ProvidersComponent);