扩张试验

【机】 expanding test

扩张的英语翻译：

dilate; expand; outspread; overspread
【计】 dilatation
【医】 dilatation; dilation; distention; ectasia; ectasis; ectasy; eury-
eurysma; expansion; stretch

试验的英语翻译：

experiment; test; try; try on; try out; examination; experimentation; trial
trial run
【计】 breadboarding
【医】 probation; test; tria
【经】 test; trial