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rift valley (Geography Dictionary)

rift valley : A valley that has formed along a long, narrow continental trough bounded by normal faults; a graben of regional size.

_ ស្វែងរកឬបកប្រែពាក្យផ្សេងទៀតនៅប្រអប់នេះ៖
ឯកសារការងារនិងរៀនគ្រប់ប្រភេទ៖​
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