单词	金属灰
释义	文馨英漢☞金屬灰金属灰1. calx
随便看	proportionably long proportional proportional action proportional action coefficient proportional action controller proportional allocation proportional amplifier proportional arm proportional band proportional band adjustment proportional band of a controller proportional band--pb proportional bandwidth filter proportional band，pb proportional basicity proportional command proportional compass proportional compasses proportional control proportional control action proportional controller proportional control {= p control} proportional control valve proportional counter proportional-counter