activation cycle
激活周期
热门单词
- abrading process
- abrasive rubber
- absolute permeability
- absorbent power
- absorption unit of dioxide carbon
- abutment crane
- access method routine
- accretionary basin
- accrued basis
- accurately machined
- acephalous
- acetate base
- acetate staple fibre
- acetocoumarin
- acetyl iodide
- acetylene cutting
- acetylene generating station
- acetylene generator
- acorn tube
- acoustic noise
- acoustic reduction factor
