摘要 |
The T-sections (1) may be laid on their sides, with the stems of the T-shapes lying flat on their sides, facing in toward the lawn (7), and one arm of the T extending down into the ground (4) and the other (3) extending vertically up into the air. The T-section may be asymmetrical with the longer sidearm of the T extending downward. Wedge shapes and additional curbs may be used.
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