An experienced quarry man can identify rift, grain and hardway with his eyes closed.

一个有经验的采石工闭着眼也能辨出裂缝纹理和难劈面。

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By virtue of modern metallograph analyse technology, the size of grain, hardness and residual stress of bevel gear by closed-die cold forging is studied.

借助现代冶金分析技术对闭塞冷锻行星齿轮的晶粒尺寸、硬度变化和残余应力分布规律进行了研究。

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The closed section isn't heavily used by freight and grain barges, which mostly enter the river further south in Iowa and Illinois for the trip to major export depots in New Orleans.

关闭的河段不是货船及谷物船舶经常行驶的河段，因为这些船舶的起航点大多在衣阿华州和伊利诺斯州更南的地方，它们的终点是新奥尔良的各大出口仓库。

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Grain and commodities export terminal 5 was closed as well as import terminal 6, a hub for Asian imports in the state as well as U.S. exports.

FORBES: "Occupy" Movement Partially Closes Oregon Port

As cheap American and Ukrainian grain imports threatened farmers' jobs in the late 1870s, continental Europe closed its agricultural markets.

ECONOMIST: Business books (5)