... 三角洲平原 delta plain(daltaic plain) 三角洲前缘 prodelta 三角洲台地；三角洲阶地 delta terrace ...
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浅水三角洲前缘平坦、开阔。
其主要沉积环境是三角洲前缘和三角洲水下河道砂体以及分支河口砂坝。
The main sedimentary environment is delta front and delta underwater channel sand and branched channel mouth bar.
含油气砂岩段主要以三角洲前缘水下分流河道和水下分流河口砂坝沉积微相为主。
The environment of sandstone containing oil and gas includes underwater distributary's channel and estuary dam in the delta frontier.
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