如果我们在关键位置钻孔，墙的承重强度就会降低。
If we drill holes in strategic locations, we compromise the load-carrying capacity of the wall.
输入字段出现在标题下方，而提交按钮已被移到一个软键位置。
The entry field appears below the caption, and the submit button has moved to one of the softkeys.
新加坡公用事业局只在几个关键位置安装了传感器，例如，在水库取水点上安装传感器。
The PUB puts sensors only in a few key spots, for instance where water leaves the reservoirs.
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