exposing process

exposing process process process. process. process. 各位英语达人,小弟遇到一个句子,百思而不得其解,望各位帮忙翻译并分析句子结构The trickled ethylene gas process of tomato ripening consists of exposing the tomatoes to a low concentration of ethylene gas under controlled hard brush scrub away tooth enamel,exposing the dentin underneath.exposing算enamel定语?exposing算分词还是定语?exposing逻辑主语enamel? the soil was washed away by the flood,(exposing) bare rocks.为什么用exposing android.process. Process((y)) android.process. process是什么意思 PROCESS怎么样 process fee process是什么意思 process problem on blacklisting and exposing student loan defaulters 最佳翻译 The soil was washed away by the flood,exposing bare rock.请问为什么是exposing?可以用exposed吗?