active protection
主动保护
热门单词
- a kind of harmful element
- abnormal exchange
- abrasive paste
- abreast milling
- absolute income
- abutment pier
- access strategy
- accounting device
- accretionary ridge
- accrual concept
- acetate cellulose fibre
- acetomeroctol
- acetylated lanolin
- acetysalicylic acid phenobarbital
- acid hardening fixer
- acid preservative method
- acid-proof
- acoustic monitoring
- acquired deformity of hip joint
- acquisition
- acro cephalosyndactylia