acoustical telegraphy
声频电报
热门单词
- a unit of land measurement
- abbreviated analysis
- abrasite (人造金刚砂)
- absolute coefficient system
- absorption curve
- abyssal cone
- ac and frequency speed control
- accelerating factor
- acceptance functional test
- access path
- accretion by black hole
- accrued liabilities
- accumulational relief
- Achilles bursitis
- achromatic phase plate
- acid cure
- acid glands
- acid proof refractory material
- acidwashing
- acknowledging contactor
- acleistocardia
