The second was effect contrast of two disinfectors;

二是消毒剂消毒手效果对比；

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With a 90tn0 effect contrast can be increased even further, but with some penalty in light efficiency.

采用90tn 0效应，其对比度可以更高，但会有一些光效损失。

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Methods To choose 4 restaurants, and to carry on an effect contrast trial of different preventing and controlling measures, by eye observation in certain area.

方法 选择4家饭店，采用定面积目测法观察，并对不同防制方法进行效果对比试验。

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For example, when using a mobile in bright sunlight, the reflection and effect on image contrast often makes using a handset for viewing videos and images difficult.

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Cash and short-term investments, by contrast, have the opposite effect.

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In contrast Mr Kostunica has, in effect, said that the possibility of co-operation ended once the EU began deploying a big mission in Kosovo.

ECONOMIST: Violence in the capital of Serbia