Eating Chinese food in D.C.’s Chinatown is frequently an exercise in disappointment. The English menus offer Americanized Chinese fare, and few of them do it well. In this sea of mediocre Kung Pao and General Tso, there is a shining light: Fried Good Dale. With no explanation on the menu of what a “Dale” might be, the diner is left to ponder the options: 1) Some sort of fish? 2) The unfortunate demise of Chip’s…