单词	前理解
释义	前理解 qián lǐ jiěpre-understanding
随便看	effective sound pressure effective sound velocity effective source area effective source bed effective source position effectivesource rock effective source rock effective source rocks effective sovereignty effective space effective span effective spatial resolution effective speaker effective specific creepage distance effective specific fuel consumption effective specific fuel oil consumption effective specific gravity effective specific impulse effective specific surface area Effective spectral bandwidth effective spectral range effective speech effective speed effective speed of transmission effective speedup