It is indicated that metal grain can be described quantitative-ly by fractal dimension.

结果表明，金属晶粒可用分形维数定量描述。

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The segregation of solute elements on metal grain boundaries may be divided into two categories, that is, equilibrium and non-equilibrium segregation.

溶质元素在金属晶界的偏聚可以分为两类，即平衡偏聚和非平衡偏聚。

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The building recalls the raw power of a modest Montana pole barn and the metal grain sheds that define the man made landscape of every farm, ranch and town under the big sky.

建筑唤起谦逊的蒙大拿大谷仓，定义每个农场人造景观的金属谷仓棚屋以及天空下的乡村和城镇的原始力量。

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They rarely take physical delivery of raw materials and have no effect on the actual production and consumption of metal, grain or oil.

ECONOMIST: Commodity speculators do more good than harm

The metal trades much like grain or other commodities.

FORBES: Is Your Gold Worth The Paper It's Printed On?

Standing near one of the mounted warriors, for example, we take in gold-trimmed expanses of small lacquered squares that cover the horse's flank, the grain of a decorated leather saddle pad, the sheen of a black metal mask, the ribbing of the helmet, the softness of the underarmor shirt, and the vibrant orange-and-gold striation of the samurai's cuirass and skirt.

WSJ: Dressed to Kill in Peacetime | Samurai! | Museum of Fine Arts, Boston | By Lee Lawrence