The final factor was the average lifetime of a technological civilization.

最后一个因素是，一个技术文明的平均寿命是多少。

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They also contain electronic information that an advanced technological civilization could convert into diagrams and images.

盘里还有电子信息，高级的科技文明可将其转化为表格和图像等数据。

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Our technological civilization depends on software, so if software had been as bad as its worst reputation, most of us would have been dead by now.

我们的科技文明取决于软件，如果软件都如大家说的那么差的话，我们大多数人早就活不下去了。

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When the search began, a half-century ago, it seemed sensible to assume that as technological civilization increased on a planet, more and more signals would be broadcast into space.

VOA: standard.2010.04.16

But because earth is home to the only technological civilization thus known, we are severely hamstrung when making assumptions about the longevity of potential extraterrestrial civilizations.

FORBES: SETI's 'L Factor':? Will E.T. Actually Be Around Long Enough To Phone Home?

Undoubtedly as C21 moves into its second decade it is clear that human civilization is experiencing rapid change whether in technological abilities or in economic muscle.

FORBES: America, Creative, Enterprising & Still Number 1!