a. 速效的

用于消毒目的氯的浓度对人类无毒性，是一种高速杀菌剂。

quick-acting cow-bezoar bolus

quick-acting shut-off valve【机】

quick-acting coupling, locking by means of locking balls

gas socket, quick-acting pipe coupling with cut-off apparatus

quick-acting fastening for ropes

quick-acting mechanical briqueting press

quick-acting fuse【电】

high-speed relay【电】;quick-acting relay【电】