active sulfur
活性硫
热门单词
- aberrant ductules
- abortion within the first month of pregnancy
- abrasive particle
- absence of larynx
- absorptive modulation
- absorptivity
- acceptable daily intake
- accessible emission limit (AEL)
- accordion pipe
- accuracy of mesh
- accuracy testing
- acetone semicarbazone
- acetonyl
- acetophenone photoreduction
- acetyl formic acid
- acetylene welder
- achillorrhaphy
- acidulous element
- acme harrow
- acoustic colo(u)ring
- acoustic transmission coefficient
