单词	过氯酸钡
释义	过氯酸钡barium perchlorate
随便看	service provider fees service--public health service pump service quality service quality competition service quality parameter service queue servicer service rate service rating service recovery service reference model service regulation service regulations service release 1 service release 2 service reliability service reliability of customers service representative service representative privilege class service request service request block service request block，srb service request interrupts service request line