Products' country of origin (COO) has an important impact on the consumer product evaluation, and such impact was called the effect of country of origin.

产品的原产国信息对消费者评价产品有着重要的影响，这种影响称之为原产国效应。

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The black powder in the exit gas of methane compressor caused the plugging of coo ling box and resulted in the reduction of refrigeration effect.

小型乙烯生产装置的往复式甲烷制冷压缩机出口气体中存在黑色粉尘，易进入冷箱造成堵塞，影响甲烷制冷并危及装置生产。

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The closed cooling system for the treated water provided with a air cooler can improve coo-ling effect. It becomes an important measure to increase the blast furnace campaign.

配备有空气冷却器的软水闭路循环冷却系统改善了高炉循环水的冷却状态，是延长高炉冶炼寿命的一项重要措施。

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To American ears, a Clerk sounds like an unimportant position, however in Canada the Clerk is the chief executive who runs the entire government (in effect the COO).

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