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Жишээлбэл, нүүрстөрөгчийн нь хоёр аллотропи болох алмааз ба бал чулуу нь байгаль дээр түгээмэл тааралдана. Энэ хоёр эрдэс хоёул дан нүүрстөрөгчийн атомоос тогтоно. Гэхдээ алмаазийг үүсгэгч нүүрстөрөгчийн атомууд нь хоорондоо тетраэдр байдлаар, харин бал чулууг үүсгэгч нүүрстөргөчийн атомууд гексагональ байдлаар холбогдоно.
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Чулуу ба чулуу бутлагч Чулуу бутлах машин. Aggregates for Concrete in NigeriaNigeria is rich is solid mineral resources such as Kaolin gypsum mica clay tantalite iron ore Granite Crushing Plant in Sri LankaSri Lanka is one of the most important Asia marketing of MTS every year there are many customers fr Limestone Grinding in BelgiumIn modern industries ...
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