action length
有效长度, 作用长度
热门单词
- a grip of steel
- a sly dog
- abampere
- abnormal refraction
- absorption crystal spectrum
- absorption probability
- absurd
- abyssal
- ACAV
- acceptance of a consignment
- acceptance sampling
- accountability tank
- accumulated surplus
- accumulative sampling
- acet
- acetoacetic ester
- acetylene black
- acetylene gas bottle
- acid reduction
- acieracious
- aciform
