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flint; gravel; pebble (Kieselstein); silicic; pebble stones; pebbles | |||
silica silicion dioxide | |||
pebble stone; stone | |||
shingle | |||
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silica; silex | |||
rubble | |||
pebble; pebblestone; pimplestone | |||
pebble (particle size from 4 to 60 mm) | |||
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siliceous; silicious |
Kiesel : 1 短语, 1 学科 |
技术 | 1 |