accident prevention
防止事故事故防止安全措施安全技术
热门单词
- abdominal contents
- absolute demand
- AC machine
- accelerating convergence
- accelerating well
- acceptor center
- access control-logging and reporting
- accessory bud
- accessory gearbox
- accidental abortion
- acetohexamide
- acid brick
- acid circulating pump
- acid sludge
- acid splitting
- acidophil leukocyte
- acinous gland
- Acorus
- acoustic corrector
- acoustics
- acquired impurity
