伴(共)生型矿床(点)数少，储量大。

The reserve is big. (4) Poor ores are many.

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注意到主动齿轮的齿数比冠状齿轮少。

Note that the input pinion is a smaller gear than the ring gear.

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但是历史上金牌数超过50枚的国家非常少。

But rarely has a country won more than 50 gold MEDALS.

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日本石龟比其他的数稍少的。

The number of Japanese pond turtle is rather fewer than other turtles.

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日本石龟比其他的数稍少的。

The number of Japanese pond turtle is rather fewer than other turtles.

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