The grindability test has a moderate range of degree of fineness and departure from the range would result in excessive consumption of grinding work.

易磨性试验存在一个适宜的细度范围，偏离这一范围就有可能导致粉磨功的大量消耗。

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Their grinding work in college has failed to produce a decent job.

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As mentioned above, the initial run of the product was a loud one -- there was a good deal of grinding noises and foundation-shaking vibrations as the Replicator went to work.

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Small children sometimes stop to talk to the crew and watch them work, especially if the hopper blade is making a lot of grinding and crunching noises while it pulverizes something big, like a stove or a couch.

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