Scientists have carefully checked these observations to exclude observational errors and other influences - such as the urban heat island effect and localised warming due to land surface changes.

科学家们谨慎地监测那些观测，以排除观测误差和其它影响，诸如城市的热岛效应和由于地表变化导致的局部升温。

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Finally, the effect of regulation work of landsliding was checked and potential slip surface scaned as well.

最后进行了滑坡整治工程效果验算和潜在滑动面的搜索。

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Hence a new engine should be correctly checked with respect to the surface quality, assembling, fastening and connection, etc.

因此，对新发动机必须从表面质量、装配和紧固连接等方面，进行正确的检查。

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