单词	人体试验
释义	人体试验Human subject research
随便看	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 proportional counter spectrometer proportional counter tube proportional counter，pc