actual cost
实际成本实际费用
热门单词
- ability factor
- abnormity of bony pelvis
- abrasive cloth
- abrine
- absolute star catalogue
- absorbancy
- accretion surface
- acentrous
- acetal copolymer
- acetonemia
- acid-recovery plant
- acorin
- acorn nut
- acoustic effects
- acoustic emission test
- acoustic mass reactance
- acoustoelectronics
- actinocongestin
- action current
- action pitch
- activation experiment
