沸腾表面的一个个对流胞(ConvectionCell)，就形成了所谓的颗粒状组织(Granulations)。这些颗粒状组织中央气体由内部上升，因此温度高，亮度大，有时可造成白斑(Faculae)结构。
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予处理温度对针状组织的性能基本无影响，但升高予处理温度对颗粒状组织的性能有害。
The heating temperature of pretreatment hasn't much influence on the properties for acicular structure, but it is detrimental to the properties for granular structure.
经稀土变质处理的铸铁组织细化，其碳化物呈团块状或颗粒状，从而提高了力学性能。
The cast iron modified by re offers refined microstructure in which the carbides become blocky or granular, thus increasing the mechanical properties.
从20年生植株的多种外植体诱导产生的愈伤组织出现了四种形态类型即白色粉末状、浅黄色糊状，白色夹红色粉状和淡绿色颗粒状愈伤组织。
The callus come from 20 year's old tree's explants have four types, they are white powder, light yellow paste, white with red powder and light green pellet.
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