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。
Then we administered a specific subpopulation of VPCs and, a week after the treatment, we checked what was the overall effect on the ulcers.
建立一个亚组给予VPC，一周之后，我们检查VPC对溃疡的全部影响情况。
But checked Chad engineering core column is fixed with aluminum alloy column, so will lose freedom scale effect, when heat bilges cold shrink large internal stress.
但是被检查的工程芯柱都与铝合金立柱固定，这样就会失去自由伸缩作用，当热胀冷缩时产生较大的内应力。
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