求翻译：数分钟后，由水位器放出，然后用自来水冲洗数次，为了清除微量盐酸，可将横式烧瓶前后摇动，使不轻易清洗的死角也冲洗干净为止是什么意思？

Few minutes later, released by the water gauge, and then washed with tap water several times, in order to remove trace hydrochloric acid, can be cross-flask back and forth, so that dead space is not easily cleaned, rinse until

正在翻译，请等待...

After a few minutes, is released by the water level, and then rinse it under running water for several times, in order to clear the trace amounts of hydrochloric acid, horizontal flow before and after the flask may be shaken, not until the rinse easily cleaned of the dead