航空图像覆盖范围广，包含巨大的信息量。
Aerial images cover wide areas and include huge information.
酸雨之所以难以控制，是因为它的覆盖范围相当广。
Preventing acid rain acid rain is difficult to control because it spreads so far.
电力线网络的特点是它覆盖的范围非常广，各种建筑物内都有接入。
The greatest advantage of the power-line network is that it covers a very wide range.
电力线网络的特点是它覆盖的范围非常广，各种建筑物内都有接入。
The greatest advantage of the power-line network is that it covers a very wide range.
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