rapidityn.迅速；急速rapidadj.短时间发生的；急速的；迅速的；快的；险峻的n.急流；湍滩rapid-scan polarography快速扫描极谱法rapid quenching technique快淬工艺Rapid Slow Reinforc Reduc疾徐补泻rapid record oscillograph快速记录示波器rapid-fire questions.连珠式的提问Rapid-precision casting快速精铸rapid prototyping machine快速成型机rapid response excitation快速励磁rapidly channel switching组播快速切换Rapid reaction capability快速反应能力