access-opening
人孔
热门单词
- abnomal loss
- abnormal posture
- abrasive material
- accending personnel
- accepted
- accessory substance
- accommodation bill
- accumulated retained earnings
- accurately machined
- acerin
- acetate dye
- acetonglycosuria
- acetylcholine esterase
- acid blow case
- acid phosphatase
- acierage
- acknowledge character (ACK)
- acoustic generator
- acoustic holographic system
- acoustic transmission coefficient
- acoustometer
