可用密度的英文怎么说
可用密度的英文: adj. 可用的 usable or operative or practiced in all kinds of weather. The act of obtaining usable substances from unusable sources. To procure(usable substances)from refuse or waste products. New techniques make it possible to recover usable things from waste. Shelf-life(time for which a stored item remains usable ) n. 密集,稠密;密度 annual ring density They will study the density of the stub. The entropy density is constant ahead of the shock. reflectivity depends on the velocity and density of rocks about 1/4 the normal hair density |