例文
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- It has fine angular sand temper with crystals and rounded opaque grains.
- It has fine angular sand temper plus small rust-colored rounded pebbles.
- This is not due to angular sand grains, but results from silica crystallization.
- Angular sands achieve this firmness as they are able to settle and form together more efficiently than rounded sands.
- Another type is angular sands, that are able to provide this firm seed bed, thus establishing durable turf.
