词典释义：
双语例句
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This paper put emphasis on the research for the test of the prefire system and baking system for the high-strength shale aggregate which material are the shale and fly ash both from Chongqing .
为了推进重庆本地高强陶粒生产，本文选用重庆本地页岩，并掺加不同量的粉煤灰，做了一系列预热制度和焙烧制度的实验。