Đồng nghĩa của hardpan

Danh từ

A remnant of lake consisting of fine-grained sediments infused with alkali salts

Danh từ

A free-draining soil, found in arid and semi-arid environments, that contains cemented secondary silica near the surface

Trái nghĩa của hardpan

hardpan Thành ngữ, tục ngữ

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