Is the human race threatened with complete extinction?

人类是否会受到完全灭绝的威胁呢？

youdao

This is an extreme case, generally complete extinction does not occur.

这是一种极限情况，一般说来，并不致发生完全熄火。

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Extinction ratio is ratio of logic "1" average optical power to logic "0" average optical power under the worst reflection and complete modulation condition.

消光比是指在最坏反射条件时，全调制条件下，逻辑“1”平均光功率与逻辑“0”平均光功率的比值。

youdao

Obviously data from the study is not included in chapter 43 of the The Complete Dinosaur - Extinction: Past and Present Perspectives written by San Diego State University's J.

BBC: Keeping up with the Jinzhousauruses

It suggests that the Internet Age is now about to end, with a mass extinction of dot-coms as sweeping and complete as the one of reptiles at the end of the Jurassic.

FORBES: Opportunity Knocking