| 释义 | 
             
                oxidogenic substrate
                
            感光底层gǎn guāng dǐ céng 
 substrate底土层dǐ tǔ céng 
 substrate下层xià céng 
 substrate, underlayer本源běn yuán 
 fountain, fountainhead, substrate酶作用物méi zuò yòng wù 
 substrate衬底chèn dǐ 
 underlayment; substrate; substratum; supporting base底层dǐ céng 
 bottom, ground floor, rough coat, substrate, understratum培养基péi yǎng jī 
 substrate; nutrient medium; culture medium; medium
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