actual frequency
实际频率
热门单词
- abundance of the elements
- accompanying gastritis
- acid salt
- acidophilous
- acoustical interferometer
- acquired antibody
- action current
- activity method of teaching
- additive mixing
- additive printed circuit technique
- additive-type fire retardant
- adhesive stamp
- adiponitrile
- Adix
- adjustable discharge gear pump
- administrative assistant
- adrenaline
- adrenalinogenesis
- adtorsion
- advance evaluation
- advancement of ripening
