改进

improve; ameliorate; enhance; refine; better; upgrade; reform; perfect; advance; optimize; make improvements to; make better; progress; bolster; improvement; amelioration; enhancement; betterment; modification; reformation; pickup; refinement; upswing; improved; enhanced; on the mend

加料

add ingredients; add materials; fortify; enrich; supplement; enhanced; fortified; enriched; supplemented

装置

device; gear; installation; setup; equipment; rig; unit; apparatus; fixture; install; equip; outfit; set up; fit up; rig up