about (ab; abt)
大约
热门单词
- abiogenesis
- abnormal movement of false joint
- abrasive dust
- abrasive roll rice polishing machine
- acarpous
- acarus
- accelerating rocket engine
- access activity
- accessory drive gear
- accessory gearbox
- accessory plate
- accidental colouring
- accountable warrants (指未经事前审核的)
- aceclidine
- acetate spinning machine
- Achilles jerk
- acid albuminuria
- acidoid
- acme screw thread
- acoustic beam deflector
- acoustic control and telemetry system
